(S (S (ADVP (RB Afterwards)) (S (BASENP (NNS actions)) (VP (VP (VP (VBD took) (BASENP (NN place))) (PP (IN in) (NP (NP (BASENP (NNP Tübingen)) (COMMA ,) (BASENP (NNP Munich))) (CC and) (BASENP (NNP Basel))))) (COMMA ,) (PP (ADVP (DT each)) (PP (IN with) (NP (BASENP (NNS hundreds)) (PP (IN of) (BASENP (NNS participants))))))))) (PERIOD .))