This document contains embedded YouTube links to a video titled "Practice". The document shares the YouTube video URL and provides two ways to embed the video on a webpage using iframe tags, one with a width and height of 480 by 390 pixels and the other with a width and height of 425 by 344 pixels.

1. Practice

2. http://www.youtube.com/watch?v=_Lw8M9evb4Q

3. <iframe title="YouTube video player" class="youtube-player" type="text/html" width="480" height="390" src="http://www.youtube.com/embed/_Lw8M9evb4Q" frameborder="0" allowFullScreen></iframe>

4. <iframe width="425" height="344" src="http://www.youtube.com/embed/_Lw8M9evb4Q?fs=1" frameborder="0" allowfullscreen=""></iframe>