diff --git a/1000-hours/sounds-of-american-english/1.1-alphabet.md b/1000-hours/sounds-of-american-english/1.1-alphabet.md
index b8568b73..90e677e5 100644
--- a/1000-hours/sounds-of-american-english/1.1-alphabet.md
+++ b/1000-hours/sounds-of-american-english/1.1-alphabet.md
@@ -13,27 +13,27 @@ Modern English is composed of *26* letters, each with both *uppercase* and *lowe
 | **A** *a* | `/eɪ/` <span class="speak-word-inline" data-audio-us="/audios/us/a-us-guy.mp3" data-audio-uk="/audios/us/a-us-jen.mp3"></span>       | *Alpha*    `/ˈæl·fə/`<span class="speak-word-inline" data-audio-us="/audios/us/Alpha-us-guy·mp3" data-audio-uk="/audios/us/Alpha-us-jen.mp3"></span>            |
 | **B** *b* | `/biː/` <span class="speak-word-inline" data-audio-us="/audios/us/b-us-guy.mp3" data-audio-uk="/audios/us/b-us-jen.mp3"></span>      | *Bravo*    `/ˈbrɑː·voʊ/`<span class="speak-word-inline" data-audio-us="/audios/us/Bravo-us-guy.mp3" data-audio-uk="/audios/us/Bravo-us-jen.mp3"></span>         |
 | **C** *c* | `/siː/` <span class="speak-word-inline" data-audio-us="/audios/us/c-us-guy.mp3" data-audio-uk="/audios/us/c-us-jen.mp3"></span>      | *Charlie*  `/ˈtʃɑːr·liː/`<span class="speak-word-inline" data-audio-us="/audios/us/Charlie-us-guy.mp3" data-audio-uk="/audios/us/Charlie-us-jen.mp3"></span>    |
-| **D** *d* | `/diː/` <span class="speak-word-inline" data-audio-us="/audios/us/d-us-guy.mp3" data-audio-uk="/audios/us/d-us-jen.mp3"></span>      | *Delta*    `/ˈdɛl·tə/`<span class="speak-word-inline" data-audio-us="/audios/us/Delta-us-guy.mp3" data-audio-uk="/audios/us/Delta-us-jen.mp3"></span>           |
-| **E** *e* | `/iː/` <span class="speak-word-inline" data-audio-us="/audios/us/e-us-guy.mp3" data-audio-uk="/audios/us/e-us-jen.mp3"></span>       | *Echo*     `/ˈɛk·oʊ/`<span class="speak-word-inline" data-audio-us="/audios/us/Echo-us-guy.mp3" data-audio-uk="/audios/us/Echo-us-jen.mp3"></span>              |
-| **F** *f* | `/ɛf/` <span class="speak-word-inline" data-audio-us="/audios/us/f-us-guy.mp3" data-audio-uk="/audios/us/f-us-jen.mp3"></span>       | *Foxtrot*  `/ˈfɔːks·trɒt/`<span class="speak-word-inline" data-audio-us="/audios/us/Foxtrot-us-guy.mp3" data-audio-uk="/audios/us/Foxtrot-us-jen.mp3"></span>   |
+| **D** *d* | `/diː/` <span class="speak-word-inline" data-audio-us="/audios/us/d-us-guy.mp3" data-audio-uk="/audios/us/d-us-jen.mp3"></span>      | *Delta*    `/ˈdel·tə/`<span class="speak-word-inline" data-audio-us="/audios/us/Delta-us-guy.mp3" data-audio-uk="/audios/us/Delta-us-jen.mp3"></span>           |
+| **E** *e* | `/iː/` <span class="speak-word-inline" data-audio-us="/audios/us/e-us-guy.mp3" data-audio-uk="/audios/us/e-us-jen.mp3"></span>       | *Echo*     `/ˈek·oʊ/`<span class="speak-word-inline" data-audio-us="/audios/us/Echo-us-guy.mp3" data-audio-uk="/audios/us/Echo-us-jen.mp3"></span>              |
+| **F** *f* | `/ef/` <span class="speak-word-inline" data-audio-us="/audios/us/f-us-guy.mp3" data-audio-uk="/audios/us/f-us-jen.mp3"></span>       | *Foxtrot*  `/ˈfɔːks·trɒt/`<span class="speak-word-inline" data-audio-us="/audios/us/Foxtrot-us-guy.mp3" data-audio-uk="/audios/us/Foxtrot-us-jen.mp3"></span>   |
 | **G** *g* | `/dʒiː/` <span class="speak-word-inline" data-audio-us="/audios/us/g-us-guy.mp3" data-audio-uk="/audios/us/g-us-jen.mp3"></span>     | *Golf*     `/ɡɑːf/`<span class="speak-word-inline" data-audio-us="/audios/us/Golf-us-guy.mp3" data-audio-uk="/audios/us/Golf-us-jen.mp3"></span>                |
-| **H** *h* | `/eɪtʃ/` <span class="speak-word-inline" data-audio-us="/audios/us/h-us-guy.mp3" data-audio-uk="/audios/us/h-us-jen.mp3"></span>     | *Hotel*    `/hoʊˈtɛl/`<span class="speak-word-inline" data-audio-us="/audios/us/Hotel-us-guy.mp3" data-audio-uk="/audios/us/Hotel-us-jen.mp3"></span>           |
+| **H** *h* | `/eɪtʃ/` <span class="speak-word-inline" data-audio-us="/audios/us/h-us-guy.mp3" data-audio-uk="/audios/us/h-us-jen.mp3"></span>     | *Hotel*    `/hoʊˈtel/`<span class="speak-word-inline" data-audio-us="/audios/us/Hotel-us-guy.mp3" data-audio-uk="/audios/us/Hotel-us-jen.mp3"></span>           |
 | **I** *i* | `/aɪ/` <span class="speak-word-inline" data-audio-us="/audios/us/i-us-guy.mp3" data-audio-uk="/audios/us/i-us-jen.mp3"></span>       | *India*    `/ˈɪn·di·ə/`<span class="speak-word-inline" data-audio-us="/audios/us/India-us-guy.mp3" data-audio-uk="/audios/us/India-us-jen.mp3"></span>          |
-| **J** *j* | `/dʒeɪ/` <span class="speak-word-inline" data-audio-us="/audios/us/j-us-guy.mp3" data-audio-uk="/audios/us/j-us-jen.mp3"></span>     | *Juliet*   `/ˈdʒuːliːˌɛt/`<span class="speak-word-inline" data-audio-us="/audios/us/Juliet-us-guy.mp3" data-audio-uk="/audios/us/Juliet-us-jen.mp3"></span>     |
+| **J** *j* | `/dʒeɪ/` <span class="speak-word-inline" data-audio-us="/audios/us/j-us-guy.mp3" data-audio-uk="/audios/us/j-us-jen.mp3"></span>     | *Juliet*   `/ˈdʒuːliːˌet/`<span class="speak-word-inline" data-audio-us="/audios/us/Juliet-us-guy.mp3" data-audio-uk="/audios/us/Juliet-us-jen.mp3"></span>     |
 | **K** *k* | `/keɪ/` <span class="speak-word-inline" data-audio-us="/audios/us/k-us-guy.mp3" data-audio-uk="/audios/us/k-us-jen.mp3"></span>      | *Kilo*     `/ˈkiː·loʊ/`<span class="speak-word-inline" data-audio-us="/audios/us/Kilo-us-guy.mp3" data-audio-uk="/audios/us/Kilo-us-jen.mp3"></span>            |
-| **L** *l* | `/ɛl/` <span class="speak-word-inline" data-audio-us="/audios/us/l-us-guy.mp3" data-audio-uk="/audios/us/l-us-jen.mp3"></span>       | *Lima*     `/ˈliː·mə/`<span class="speak-word-inline" data-audio-us="/audios/us/Lima-us-guy.mp3" data-audio-uk="/audios/us/Lima-us-jen.mp3"></span>             |
-| **M** *m* | `/ɛm/` <span class="speak-word-inline" data-audio-us="/audios/us/m-us-guy.mp3" data-audio-uk="/audios/us/m-us-jen.mp3"></span>       | *Mike*     `/maɪk/`<span class="speak-word-inline" data-audio-us="/audios/us/Mike-us-guy.mp3" data-audio-uk="/audios/us/Mike-us-jen.mp3"></span>                |
-| **N** *n* | `/ɛn/` <span class="speak-word-inline" data-audio-us="/audios/us/n-us-guy.mp3" data-audio-uk="/audios/us/n-us-jen.mp3"></span>       | *November* `/noʊˈvɛm·bər/`<span class="speak-word-inline" data-audio-us="/audios/us/November-us-guy.mp3" data-audio-uk="/audios/us/November-us-jen.mp3"></span> |
+| **L** *l* | `/el/` <span class="speak-word-inline" data-audio-us="/audios/us/l-us-guy.mp3" data-audio-uk="/audios/us/l-us-jen.mp3"></span>       | *Lima*     `/ˈliː·mə/`<span class="speak-word-inline" data-audio-us="/audios/us/Lima-us-guy.mp3" data-audio-uk="/audios/us/Lima-us-jen.mp3"></span>             |
+| **M** *m* | `/em/` <span class="speak-word-inline" data-audio-us="/audios/us/m-us-guy.mp3" data-audio-uk="/audios/us/m-us-jen.mp3"></span>       | *Mike*     `/maɪk/`<span class="speak-word-inline" data-audio-us="/audios/us/Mike-us-guy.mp3" data-audio-uk="/audios/us/Mike-us-jen.mp3"></span>                |
+| **N** *n* | `/en/` <span class="speak-word-inline" data-audio-us="/audios/us/n-us-guy.mp3" data-audio-uk="/audios/us/n-us-jen.mp3"></span>       | *November* `/noʊˈvem·bər/`<span class="speak-word-inline" data-audio-us="/audios/us/November-us-guy.mp3" data-audio-uk="/audios/us/November-us-jen.mp3"></span> |
 | **O** *o* | `/oʊ/` <span class="speak-word-inline" data-audio-us="/audios/us/o-us-guy.mp3" data-audio-uk="/audios/us/o-us-jen.mp3"></span>       | *Oscar*    `/ˈɑːs·kɑːr/`<span class="speak-word-inline" data-audio-us="/audios/us/Oscar-us-guy.mp3" data-audio-uk="/audios/us/Oscar-us-jen.mp3"></span>         |
 | **P** *p* | `/piː/` <span class="speak-word-inline" data-audio-us="/audios/us/p-us-guy.mp3" data-audio-uk="/audios/us/p-us-jen.mp3"></span>      | *Papa*     `/pəˈpɑː/`<span class="speak-word-inline" data-audio-us="/audios/us/Papa-us-guy.mp3" data-audio-uk="/audios/us/Papa-us-jen.mp3"></span>              |
-| **Q** *q* | `/kjuː/` <span class="speak-word-inline" data-audio-us="/audios/us/q-us-guy.mp3" data-audio-uk="/audios/us/q-us-jen.mp3"></span>     | *Quebec*   `/kəˈbɛk/`<span class="speak-word-inline" data-audio-us="/audios/us/Quebec-us-guy.mp3" data-audio-uk="/audios/us/Quebec-us-jen.mp3"></span>          |
+| **Q** *q* | `/kjuː/` <span class="speak-word-inline" data-audio-us="/audios/us/q-us-guy.mp3" data-audio-uk="/audios/us/q-us-jen.mp3"></span>     | *Quebec*   `/kəˈbek/`<span class="speak-word-inline" data-audio-us="/audios/us/Quebec-us-guy.mp3" data-audio-uk="/audios/us/Quebec-us-jen.mp3"></span>          |
 | **R** *r* | `/ɑːr/` <span class="speak-word-inline" data-audio-us="/audios/us/r-us-guy.mp3" data-audio-uk="/audios/us/r-us-jen.mp3"></span>      | *Romeo*    `/ˈroʊ·miːˌoʊ/`<span class="speak-word-inline" data-audio-us="/audios/us/Romeo-us-guy.mp3" data-audio-uk="/audios/us/Romeo-us-jen.mp3"></span>       |
-| **S** *s* | `/ɛs/` <span class="speak-word-inline" data-audio-us="/audios/us/s-us-guy.mp3" data-audio-uk="/audios/us/s-us-jen.mp3"></span>       | *Sierra*   `/siˈɛr·ə/`<span class="speak-word-inline" data-audio-us="/audios/us/Sierra-us-guy.mp3" data-audio-uk="/audios/us/Sierra-us-jen.mp3"></span>         |
+| **S** *s* | `/es/` <span class="speak-word-inline" data-audio-us="/audios/us/s-us-guy.mp3" data-audio-uk="/audios/us/s-us-jen.mp3"></span>       | *Sierra*   `/siˈer·ə/`<span class="speak-word-inline" data-audio-us="/audios/us/Sierra-us-guy.mp3" data-audio-uk="/audios/us/Sierra-us-jen.mp3"></span>         |
 | **T** *t* | `/tiː/` <span class="speak-word-inline" data-audio-us="/audios/us/t-us-guy.mp3" data-audio-uk="/audios/us/t-us-jen.mp3"></span>      | *Tango*    `/ˈtæŋ·ɡoʊ/`<span class="speak-word-inline" data-audio-us="/audios/us/Tango-us-guy.mp3" data-audio-uk="/audios/us/Tango-us-jen.mp3"></span>          |
 | **U** *u* | `/juː/` <span class="speak-word-inline" data-audio-us="/audios/us/u-us-guy.mp3" data-audio-uk="/audios/us/u-us-jen.mp3"></span>      | *Uniform*  `/ˈjuː·nɪ·fɔːrm/`<span class="speak-word-inline" data-audio-us="/audios/us/Uniform-us-guy.mp3" data-audio-uk="/audios/us/Uniform-us-jen.mp3"></span> |
 | **V** *v* | `/viː/` <span class="speak-word-inline" data-audio-us="/audios/us/v-us-guy.mp3" data-audio-uk="/audios/us/v-us-jen.mp3"></span>      | *Victor*   `/ˈvɪk·tər/`<span class="speak-word-inline" data-audio-us="/audios/us/Victor-us-guy.mp3" data-audio-uk="/audios/us/Victor-us-jen.mp3"></span>        |
 | **W** *w* | `/ˈdʌb·ᵊl·juː/` <span class="speak-word-inline" data-audio-us="/audios/us/w-us-guy.mp3" data-audio-uk="/audios/us/w-us-jen.mp3"></span> | *Whiskey*  `/ˈwɪs·kiː/`<span class="speak-word-inline" data-audio-us="/audios/us/Whiskey-us-guy.mp3" data-audio-uk="/audios/us/Whiskey-us-jen.mp3"></span>      |
-| **X** *x* | `/ɛks/` <span class="speak-word-inline" data-audio-us="/audios/us/x-us-guy.mp3" data-audio-uk="/audios/us/x-us-jen.mp3"></span>      | *X-ray*    `/ˈɛks·reɪ/`<span class="speak-word-inline" data-audio-us="/audios/us/X-ray-us-guy.mp3" data-audio-uk="/audios/us/X-ray-us-jen.mp3"></span>          |
+| **X** *x* | `/eks/` <span class="speak-word-inline" data-audio-us="/audios/us/x-us-guy.mp3" data-audio-uk="/audios/us/x-us-jen.mp3"></span>      | *X-ray*    `/ˈeks·reɪ/`<span class="speak-word-inline" data-audio-us="/audios/us/X-ray-us-guy.mp3" data-audio-uk="/audios/us/X-ray-us-jen.mp3"></span>          |
 | **Y** *y* | `/waɪ/` <span class="speak-word-inline" data-audio-us="/audios/us/y-us-guy.mp3" data-audio-uk="/audios/us/y-us-jen.mp3"></span>      | *Yankee*   `/ˈjæŋ·kiː/`<span class="speak-word-inline" data-audio-us="/audios/us/Yankee-us-guy.mp3" data-audio-uk="/audios/us/Yankee-us-jen.mp3"></span>        |
 | **Z** *z* | `/ziː/` <span class="speak-word-inline" data-audio-us="/audios/us/z-us-guy.mp3" data-audio-uk="/audios/us/z-us-jen.mp3"></span>      | *Zulu*     `/ˈzuː·luː/`<span class="speak-word-inline" data-audio-us="/audios/us/Zulu-us-guy.mp3" data-audio-uk="/audios/us/Zulu-us-jen.mp3"></span>            |