(S (S (PP (IN On) (BASENP (NNP Thursday))) (COMMA ,) (S (NP (BASENP (NNS skippers)) (PP (IN of) (BASENP (NN 11) (JJ Indonesian) (NN fishing) (NNS boats)))) (VP (VBD were) (VP (VBN fined) (PP (IN by) (BASENP (DT a) (NNP Perth) (NN court))))))) (PERIOD .))