A man may nod approval.Logical formLearned from2 sentences. Mothers may nod.Logical formLearned from2 sentences. A marine may nod.Logical formLearned from2 sentences. A doctor may nod approval.Logical formLearned from2 sentences. An one may nod at a person.Logical formLearned from2 sentences. A taxi-driver may nod.Logical formLearned from2 sentences. A male may nod at a door.Logical formLearned from2 sentences. Husband may nod.Logical formLearned from2 sentences. A male may nod at a waiter.Logical formLearned from2 sentences. A person may nod to a man.Logical formLearned from2 sentences. A businessman may nod.Logical formLearned from2 sentences. A superintendent may nod.Logical formLearned from2 sentences. A drive may nod.Logical formLearned from2 sentences. A male may nod to friends.Logical formLearned from2 sentences. A table may nod.Logical formLearned from2 sentences.