巷，是仅容两三人并肩排行的巷;楼，是一楼一底的楼;院，是一院套一院的院。
B-Location O O O O B-Person I-Person I-Person O O O O O B-Thing O O O O O O O O O B-Thing O O O O B-Location I-Location I-Location I-Location I-Location I-Location B-Thing O