input: [Name] watched_video_id_list_XXX [XXX is a series of numbers and letters] (several of these cookies are set) __ar_v4 HSID dkv VISITOR_INFO1_LIVE LOGIN_INFO PREF SID demographics [More Information] http://www.google.co.uk /intl/en/policies/privacy/ [Purpose] 
output: These cookies are used by YouTube to provide embedded videos that are displayed in the site.