somewhat dilutes the pleasure of watching them 
(ROOT (S (ADVP (RB somewhat)) (VP (VBZ dilutes) (NP (NP (DT the) (NN pleasure)) (PP (IN of) (S (VP (VBG watching) (NP (PRP them)))))))))
(ROOT (S (ADVP (RB )) (VP (VBZ ) (NP (NP (DT ) (NN )) (PP (IN ) (S (VP (VBG ) (NP (PRP )))))))))