Uh, let's see.
( Uh ( , ( ( let 's ) ( see . ) ) ) )
(ROOT (S (ADVP (RB Uh)) (, ,) (NP (NNP let) (POS 's)) (VP (VBP see)) (. .)))
Let us look.
( ( Let ( us look ) ) . )
(ROOT (S (VP (VB Let) (S (NP (PRP us)) (VP (VB look)))) (. .)))