https://www.youtube.com/watch?v
  https://www.youtube.com/watch?v
  https://www.youtube.com/watch?v
  http://www.youtube.com/watch?v
  http://www.youtube.com/watch?v=s
  http://www.youtube.com/watch?v
  http://www.youtube.com/watch?v=g
  http://www.youtube.com/watch?v=x
  http://www.youtube.com/watch?v
  http://www.youtube.com/watch?v=3b