(S (S (PP-SBJ (NP (PP (BASENP (NN 目撃) (NN 者)) (IN の)) (NN 様子)) (IN が)) (COMMA 、) (VP (PP-OBJ (BASENP (NN 衝撃)) (IN を)) (VP (VP (VBV 物語っ) (INTE て)) (VP (VB いる))))) (PERIOD 。))
目撃 者 の 様子 が 、 衝撃 を 物語っ て いる 。
The condition of the witnesses can be described as shock .