nothing to gain from watching they 
(ROOT (NP (NP (NN nothing)) (SBAR (S (VP (TO to) (VP (VB gain) (PP (IN from) (S (VP (VBG watching) (NP (PRP they)))))))))))
(ROOT (NP (NP (NN )) (SBAR (S (VP (TO ) (VP (VB ) (PP (IN ) (S (VP (VBG ) (NP (PRP )))))))))))