He seemed a trifle embarrassed.
( He ( ( seemed ( ( a trifle ) embarrassed ) ) . ) )
(ROOT (S (NP (PRP He)) (VP (VBD seemed) (ADJP (NP (DT a) (RB trifle)) (JJ embarrassed))) (. .)))
What he saw embarrassed him.
( ( What ( he saw ) ) ( ( embarrassed him ) . ) )
(ROOT (S (SBAR (WHNP (WP What)) (S (NP (PRP he)) (VP (VBD saw)))) (VP (VBZ embarrassed) (NP (PRP him))) (. .)))