 We're just, we just we don't know who he is.
( We ( ( ( ( 're just ) , ) ( we ( just ( we ( ( do n't ) ( know ( who ( he is ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP We)) (VP (VBP 're) (ADVP (RB just)) (, ,) (S (NP (PRP we)) (SBAR (RB just) (S (NP (PRP we)) (VP (VBP do) (RB n't) (VP (VB know) (SBAR (WHNP (WP who)) (S (NP (PRP he)) (VP (VBZ is)))))))))) (. .)))
We do not know him or who he is.
( We ( ( ( do not ) ( know ( ( him or ) ( who ( he is ) ) ) ) ) . ) )
(ROOT (S (NP (PRP We)) (VP (VBP do) (RB not) (VP (VB know) (NP (NP (PRP him)) (CC or) (SBAR (WHNP (WP who)) (S (NP (PRP he)) (VP (VBZ is))))))) (. .)))