(S (S (PP-SBJ (BASENP (NN 彼ら)) (IN は)) (VP (NP (PP (NP (PP (BASENP (NN 引き渡し)) (IN の)) (NN 式典)) (IN の)) (NN 間)) (COMMA 、) (VP (PP (BASENP (NN 空港)) (IN で)) (VP (PP-OBJ (NP (PP (BASENP (NN 追撃) (NN 砲)) (IN の)) (NN 攻撃)) (IN を)) (VP (VBV 受け) (VP (MD た))))))) (PERIOD 。))
彼ら は 引き渡し の 式典 の 間 、 空港 で 追撃 砲 の 攻撃 を 受け た 。
They came under mortar fire at the airport during a hand-over ceremony .