Downstairs may pertain-to an upstairs.Logical formLearned from4 sentences. A female may come downstairs on afternoons.Logical formLearned from4 sentences. (Descent downstairs) may pertain-to a male.Logical formLearned from4 sentences. Downstairs can be sitting-room.Logical formLearned from4 sentences. A male may claim downstairs.Logical formLearned from4 sentences. Downstairs can be with a female.Logical formLearned from4 sentences. A person may leave (phone downstairs).Logical formLearned from4 sentences. A person may shuffle downstairs.Logical formLearned from4 sentences. (Block downstairs) may pertain-to a person.Logical formLearned from4 sentences. Downstairs can be with a set of rules.Logical formLearned from4 sentences. A wife may go downstairs.Logical formLearned from4 sentences. A person may carry downstairs.Logical formLearned from4 sentences. Persons may see downstairs.Logical formLearned from4 sentences. A sister may come downstairs.Logical formLearned from4 sentences. A cup can be constituted-of-or-filled-with (coffee downstairs).Logical formLearned from4 sentences.