(S (S (SBAR (IN While) (S (BASENP (PRP it)) (VP (VP (VBZ is) (ADJP (JJ unclear))) (SBAR (WHNP (WP who)) (S (VP (VBD fired) (BASENP (DT the) (NNS rockets)))))))) (COMMA ,) (S (NP (NP (BASENP (NNP Lebanon) (POS 's)) (BASENP (JJ interior) (NN minister))) (PRN (COMMA ,) (BASENP (NNP Marwan) (NNP Charbel)) (COMMA ,))) (VP (VBD said) (SBAR (S (BASENP (PRP it)) (VP (VBD appeared) (SBAR (S (BASENP (DT the) (NNS rockets)) (VP (VBD had) (VP (VBN come) (PP (IN from) (NP (BASENP (DT the) (NN south-east)) (PP (IN of) (BASENP (DT the) (NN city))))))))))))))) (PERIOD .))