(S (S (BASENP (DT The) (NN prison) (NNS guards)) (VP (VBP have) (VP (ADVP (RB allegedly)) (VP (VP (VBN accepted) (NP (BASENP (JJ monetary) (NN bribes)) (PP (IN from) (BASENP (NNS prisoners))))) (PP (IN in) (NP (BASENP (NN exchange)) (PP (IN for) (BASENP (NNS drugs) (CC and) (NNS cellphones))))))))) (PERIOD .))