(S (S (BASENP (EX There)) (VP (VBZ is) (NP (BASENP (DT no) (NN danger)) (PP (IN of) (NP (BASENP (JJ toxic) (NNS spills)) (CC or) (NP (BASENP (NN leak)) (PP (IN of) (BASENP (NNS viruses))))))))) (PERIOD .))