you know and then how long are they supposed to take it
( you ( ( know and ) ( then ( ( how long ) ( are ( they ( supposed ( to ( take it ) ) ) ) ) ) ) ) )
(ROOT (S (NP (PRP you)) (VP (VP (VBP know)) (CC and) (VP (ADVP (RB then)) (SBAR (WHNP (WRB how) (RB long)) (S (VP (VBP are) (NP (NP (PRP they)) (VP (VBN supposed) (S (VP (TO to) (VP (VB take) (NP (PRP it))))))))))))))
You know how long they're supposed to take it
( You ( know ( ( how long ) ( they ( 're ( supposed ( to ( take it ) ) ) ) ) ) ) )
(ROOT (S (NP (PRP You)) (VP (VBP know) (SBAR (WHADVP (WRB how) (RB long)) (S (NP (PRP they)) (VP (VBP 're) (VP (VBN supposed) (S (VP (TO to) (VP (VB take) (NP (PRP it))))))))))))