bale reduced mainly to batting his sensitive eyelids 
(ROOT (NP (NP (NN bale)) (VP (VBN reduced) (ADVP (RB mainly)) (PP (IN to) (S (VP (VBG batting) (NP (PRP$ his) (JJ sensitive) (NNS eyelids))))))))
(ROOT (NP (NP (NN )) (VP (VBN ) (ADVP (RB )) (PP (IN ) (S (VP (VBG ) (NP (PRP$ ) (JJ ) (NNS ))))))))