(S (S (PP (IN In) (NP (BASENP (DT the) (NN event)) (PP (IN of) (BASENP (DT a) (NN government) (NN shutdown))))) (COMMA ,) (S (S (BASENP (JJ essential) (JJ federal) (NNS employees)) (VP (VBP are) (VP (ADVP (RB still)) (VP (VBN required) (S (VP (TO to) (VP (VB work)))))))) (CONJP (COMMA ,) (CC but)) (S (BASENP (JJ nonessential) (NNS personnel)) (VP (VBP are) (VP (VBN placed) (PP (IN on) (BASENP (JJ unpaid) (NNS furloughs)))))))) (PERIOD .))