A preference can be for sons.Logical formLearned from100 sentences. An apartment may pertain-to a son.Logical formLearned from100 sentences. A back may pertain-to a son.Logical formLearned from100 sentences. A mouth may pertain-to a son.Logical formLearned from100 sentences. A son may be left.Logical formLearned from100 sentences. A son may pertain-to president.Logical formLearned from100 sentences. A son may be born in a world-city.Logical formLearned from100 sentences. A (baby son) may pertain-to a person.Logical formLearned from99 sentences. Sons may undergo a loss.Logical formLearned from99 sentences. A son may pertain-to an architect.Logical formLearned from99 sentences. A son may become king.Logical formLearned from99 sentences. An unit may pertain-to a son.Logical formLearned from99 sentences. A female may visit a son.Logical formLearned from99 sentences. A son may be played by a male.Logical formLearned from99 sentences. A face may pertain-to a son.Logical formLearned from99 sentences.