(S (S (NP (BASENP (NNS Ambulances)) (CC and) (BASENP (JJ medical) (NNS teams))) (VP (VP (VBD rushed) (PP (TO to) (BASENP (DT the) (NN scene)))) (PP (IN from) (BASENP (JJ surrounding) (NNS areas))))) (PERIOD .))