yeah i can believe that
( yeah ( i ( can ( believe that ) ) ) )
(ROOT (S (VP (VB yeah) (SBAR (S (NP (FW i)) (VP (MD can) (VP (VB believe) (NP (DT that)))))))))
I agree because you persuaded me.
( I ( ( agree ( because ( you ( persuaded me ) ) ) ) . ) )
(ROOT (S (NP (PRP I)) (VP (VBP agree) (SBAR (IN because) (S (NP (PRP you)) (VP (VBD persuaded) (NP (PRP me)))))) (. .)))