南院有两孔窑洞，我家一孔，堂叔家一孔，两家共用一个院子。
B-Thing I-Thing O O O B-Thing I-Thing O B-Organization I-Organization B-Metric I-Metric O B-Organization I-Organization I-Organization B-Metric I-Metric O B-Organization I-Organization O O O O B-Thing I-Thing O