(S (S (SBAR (IN While) (S (BASENP (PRP it)) (VP (VP (VBZ is) (VP (VBN considered))) (S (VP (TO to) (VP (VB be) (BASENP (DT a) (JJ safe) (NNP Labor) (NN seat)))))))) (COMMA ,) (S (BASENP (DT the) (NN by-election)) (VP (VBZ is) (VP (VBN expected) (S (VP (TO to) (VP (VB be) (VP (ADVP (RB heavily)) (VBN contested))))))))) (PERIOD .))