(S (S (BASENP (DT The) (NN fire)) (VP (VP (VP (VBD burned) (PRT (RP down))) (BASENP (DT a) (NNP Los) (NNP Angeles) (NNP County) (NNP Sheriff) (NNP Department) (NNS communications) (NN tower))) (COMMA ,) (S (VP (VBG forcing) (S (NP (BASENP (BASENP (NNP Lancaster)) (CC and) (JJ Palmdale-based)) (NNS deputies)) (VP (TO to) (VP (VP (VP (VB set) (PRT (RP up))) (BASENP (JJ mobile) (NNS operations) (NNS bases))) (CC and) (VP (VB coordinate) (NP (BASENP (PRPD their) (NNS efforts)) (VP (VBG using) (NP (BASENP (NN cell) (NNS phones)) (CC and) (BASENP (NNS computers))))))))))))) (PERIOD .))