what did sadao and his wife Hana saw from their balcony

Dear Student, 

Sadao and Hana were standing on the balcony. A dense fog had engulfed the place. At this stage, they saw something black coming out of the mists. They later realised that it was a man. He staggered a few steps and later collapsed. He was lying there motionless. They went to check on him and found that he was a white soldier. His cap indicated that he was from the U.S. Navy. It was now clear to them that he was a prisoner of war. 

Regards