, then becomes bring it on , then becomes unwatchable 
(ROOT (S (, ,) (ADVP (RB then)) (VP (VBZ becomes) (S (VP (VB bring) (NP (PRP it)) (PRT (RP on))))) (, ,) (ADVP (RB then)) (VP (VBZ becomes) (ADJP (JJ unwatchable)))))
(ROOT (S (, ) (ADVP (RB )) (VP (VBZ ) (S (VP (VB ) (NP (PRP )) (PRT (RP ))))) (, ) (ADVP (RB )) (VP (VBZ ) (ADJP (JJ )))))