Do you remember little Pierre?
( ( ( Do you ) ( remember ( little Pierre ) ) ) ? )
(ROOT (SQ (VBP Do) (NP (PRP you)) (VP (VB remember) (NP (JJ little) (NNP Pierre))) (. ?)))
Do you know who Pierre is?
( ( ( Do you ) ( know ( who ( Pierre is ) ) ) ) ? )
(ROOT (SQ (VBP Do) (NP (PRP you)) (VP (VB know) (SBAR (WHNP (WP who)) (S (NP (NNP Pierre)) (VP (VBZ is))))) (. ?)))