“一个老人沿着河岸，走进一片竹林，他的背影和着夕阳一起隐没，看上去很美。
O B-Metric I-Metric B-Person I-Person O O B-Location I-Location O O O B-Metric I-Metric B-Location I-Location O B-Person I-Person B-Thing I-Thing O O B-Thing I-Thing O O O O O O O O O O O