(S (S (S (BASENP (DT The) (NN search) (NN area)) (VP (VBZ has) (VP (VBN been) (VP (VBN expanded) (PP (IN across) (NP (BASENP (DT the) (NN state) (NN border)) (PP (IN towards) (NP (BASENP (NNP Pascagoula)) (COMMA ,) (BASENP (NNP Mississippi)))))))))) (COMMA ,) (SBAR (IN as) (S (BASENP (NNS authorities)) (VP (VBP believe) (SBAR (S (BASENP (DT the) (JJ strong) (NN currents)) (VP (MD may) (VP (VB have) (VP (VP (VBN moved) (BASENP (DT the) (NNS bodies))) (ADVP (RB westward))))))))))) (PERIOD .))