A son may fly to a world-city.Logical formLearned from21 sentences. A person can be a son of a president.Logical formLearned from21 sentences. A person can be concerned about a son.Logical formLearned from21 sentences. A son may be concerned.Logical formLearned from21 sentences. A son can be constituted-of-or-filled-with physician.Logical formLearned from20 sentences. A candidacy may pertain-to a son.Logical formLearned from20 sentences. A wife can be with a son.Logical formLearned from20 sentences. A daughter may give birth to a son.Logical formLearned from20 sentences. A son can be constituted-of-or-filled-with politician.Logical formLearned from20 sentences. A son may go with a male.Logical formLearned from20 sentences. A minority may pertain-to a son.Logical formLearned from20 sentences. A throne may pertain-to a son.Logical formLearned from20 sentences. A son may move to a world-city.Logical formLearned from20 sentences. A son may pertain-to a shogun.Logical formLearned from20 sentences. A male can be a son of politician.Logical formLearned from20 sentences.