(S (S (S (BASENP (QP (RB Around) (NN 150)) (NNPS Muslims)) (VP (VP (VBD were) (PP (IN inside) (BASENP (DT the) (NN mosque)))) (PP (IN for) (BASENP (NN morning) (NNS prayers))))) (SBAR (WHADVP (WRB when)) (S (BASENP (DT the) (NN construction) (CC and) (NN blockade)) (VP (VBD began))))) (PERIOD .))