(S (S (BASENP (NNP Athens-Clarke) (NNP County) (NNP Police) (NNP Captain) (NNP Clarence) (NNP Holeman)) (VP (VBD reported) (SBAR (IN that) (S (S (BASENP (NN two) (NNS others)) (VP (VBD were) (VP (VBN injured) (PP (IN by) (BASENP (NN shrapnel)))))) (CONJP (COMMA ,) (CC and)) (S (NP (BASENP (DT the) (NN extent)) (PP (IN of) (BASENP (PRPD their) (NNS injuries)))) (VP (VBZ is) (ADJP (JJ unknown)))))))) (PERIOD .))