input: [Cookie] Twitter [Name] _utma, _utmb, _utmc, _utmv, _utmz, guest_id, auth_token_session, secure_session, twll, remember_checked, k [Purpose] 
output: These cookies are used by twitter to keep track of the number of times you visit our website, when your current visit started, when you left our site, to identify your account. More about Twitter’s cookies