(S (S (BASENP (DT The) (NN agreement)) (VP (VBZ follows) (NP (NP (BASENP (DT a) (NN spate)) (PP (IN of) (BASENP (JJ violent) (NNS incidents)))) (PP (IN at) (NP (BASENP (NNPS Bulldogs) (NNS matches)) (BASENP (DT this) (NN year))))))) (PERIOD .))