(S (S (BASENP (NN Rescue) (NNS crews)) (VP (VBP have) (VP (VBN called) (NP (BASENP (DT an) (NN end)) (PP (TO to) (NP (BASENP (DT the) (NN search)) (PP (IN for) (NP (BASENP (NN eight) (NNS mountaineers)) (SBAR (WHNP (WP who)) (S (VP (VP (VP (VBD went) (ADJP (JJ missing))) (PP (IN on) (NP (BASENP (DT the) (JJ French) (NN side)) (PP (IN of) (BASENP (NNP Mont) (NNP Blanc)))))) (PP (IN after) (NP (BASENP (DT an) (NN avalanche)) (SBAR (WHNP (WDT that)) (S (VP (VP (VP (VBD occurred) (PP (IN on))) (PP (IN at) (NP (BASENP (NN 0100)) (BASENP (NN GMT))))) (BASENP (NNP August) (NN 24)))))))))))))))))) (PERIOD .))