(S (S (BASENP (NN Two) (ADJP (JJ young) (COMMA ,) (JJ teenage)) (NNS girls)) (VP (VP (VBP walk) (ADVP (RB past))) (COMMA ,) (S (VP (VBG glancing) (PP (IN at) (BASENP (DT the) (NN board))))))) (PERIOD .))