(S (S (S (BASENP (DT Another) (NN attack)) (VP (VBD occurred) (ADVP (BASENP (NNS hours)) (RBR later)))) (COMMA ,) (SBAR (WHADVP (WRB when)) (S (BASENP (DT another) (NN rocket)) (VP (VP (VBD landed) (PP (IN near) (BASENP (JJ several) (JJ young) (NNS men)))) (COMMA ,) (S (VP (VP (VP (VBG injuring) (BASENP (DT a) (JJ 17-year-old) (NN youth))) (ADVP (RB severely))) (CC and) (VP (BASENP (JJ several) (NNS others)) (ADVP (RB lightly))))))))) (PERIOD .))