(S (S (NP (BASENP (DT The) (JJ next) (NN phase)) (PP (IN of) (BASENP (DT the) (NN trial)))) (VP (MD will) (VP (VB include) (NP (BASENP (NN 700) (NNS people)) (PP (IN from) (BASENP (JJ varying) (NN age) (NNS groups))))))) (PERIOD .))