7181次列车在聊城站暂停后，上来一位年逾七旬的张老汉，其去女儿工作地----北京旅游。
B-Thing I-Thing I-Thing I-Thing I-Thing I-Thing I-Thing O B-Location I-Location I-Location O O O O O O B-Metric I-Metric O O O O O B-Person I-Person I-Person O O O B-Location I-Location I-Location I-Location I-Location I-Location O O O B-Location I-Location O O O