so Eric what do you think um
( so ( Eric ( what ( do ( you ( think um ) ) ) ) ) )
(ROOT (FRAG (ADVP (RB so)) (NP (NP (NNP Eric)) (SBAR (WHNP (WP what)) (S (VP (VBP do) (SBAR (S (NP (PRP you)) (VP (VBP think) (NP (NN um)))))))))))
What do you think, Eric?
( What ( ( ( do you ) ( ( think , ) Eric ) ) ? ) )
(ROOT (SBARQ (WHNP (WP What)) (SQ (VBP do) (NP (PRP you)) (VP (VB think) (, ,) (ADVP (RB Eric)))) (. ?)))