事实也是这样，当时，我们家的猪养在北院，羊养在北院，鸡也养在北院。
O O O O O O O B-Time I-Time O B-Organization I-Organization I-Organization O B-Thing O O B-Location I-Location O B-Thing I-Thing O B-Location I-Location O B-Thing O O O B-Location I-Location O