(S (S (ADVP (RB However)) (COMMA ,) (S (BASENP (DT the) (NNS penalties)) (VP (VBP apply) (PP (PP (ADVP (RB only)) (PP (TO to) (NP (BASENP (NNS unions)) (VP (VBG organising) (BASENP (JJ secondary) (NNS strikes)))))) (COMMA ,) (PP (ADVP (RB not)) (PP (TO to) (NP (BASENP (NNS workers)) (VP (VBG acting) (ADVP (RB individually)))))))))) (PERIOD .))