(S (S (BASENP (JJ Last) (NN year)) (COMMA ,) (S (S (S (BASENP (DT another) (NN zoo) (NN worker)) (VP (VBD was) (VP (ADVP (RB seriously)) (VP (VBN injured) (PP (IN by) (BASENP (NNP Tatiana))))))) (SBAR (IN while) (VP (VBG attempting) (S (VP (TO to) (VP (VB feed) (BASENP (PRP her)))))))) (CONJP (COMMA ,) (CC but)) (S (VP (VBD survived) (BASENP (DT the) (NN attack)))))) (PERIOD .))