(S (S (NP (NP (BASENP (DT The) (NN date)) (PP (IN of) (BASENP (NN execution)))) (CC and) (NP (BASENP (DT the) (NN period)) (PP (IN for) (S (VP (VBG evacuating) (BASENP (DT the) (NNS buildings))))))) (VP (VP (VBD were) (RB not)) (VP (VBN stated)))) (PERIOD .))