(S (S (BASENP (NN Three) (NN fire) (NN service) (NN tanker) (NNS vehicles)) (VP (VP (VBD attended) (BASENP (DT the) (NN scene))) (CONJP (COMMA ,) (CC but)) (VP (VP (VBD used) (PRT (RP up))) (BASENP (PDT all) (PRPD their) (NN water) (NNS supplies))))) (PERIOD .))