My wife is studying as a teacher. She practices in 2nd grade. Among the students is one nence, a real, from the tundra. She gives the task: make two sentences with the word "cow". Check how it is done. Who fed the cow, who fed it, who fed it, and who drank it? It is the turn of a notebook with the task of a small ninja. First sentence: I used milk from a cow’s breasts. And the second proposition: I slaughtered the cow.