(S (S (NP (BASENP (DT The) (NNS workers)) (PRN (COMMA ,) (SBAR (WHNP (WP who)) (S (VP (VBD had) (VP (VP (VBN been) (PP (IN on) (BASENP (NN strike)))) (PP (IN for) (BASENP (NN four) (NNS days))))))) (COMMA ,))) (VP (VBD were) (VP (VBG wishing) (S (VP (TO to) (VP (VB have) (S (BASENP (NNS improvements)) (VP (VBN made) (PP (TO to) (NP (NP (BASENP (PRPD their) (NNS wages)) (COMMA ,) (BASENP (NN working) (NNS conditions))) (CONJP (COMMA ,) (CC and)) (BASENP (NNS allowances)))))))))))) (PERIOD .))