no never heard of it
( ( no never ) ( heard ( of it ) ) )
(ROOT (VP (ADVP (RB no) (RB never)) (VBN heard) (PP (IN of) (NP (PRP it)))))
He does not know what it is.
( He ( ( ( does not ) ( know ( what ( it is ) ) ) ) . ) )
(ROOT (S (NP (PRP He)) (VP (VBZ does) (RB not) (VP (VB know) (SBAR (WHNP (WP what)) (S (NP (PRP it)) (VP (VBZ is)))))) (. .)))