A (baby sister) may pertain-to a female.Logical formLearned from485 sentences. A sister may pertain-to a US-president.Logical formLearned from452 sentences. A room may pertain-to a sister.Logical formLearned from445 sentences. An ex-husband may pertain-to a sister.Logical formLearned from445 sentences. A place may pertain-to a sister.Logical formLearned from430 sentences. A sister can be to a person.Logical formLearned from426 sentences. A sister may tell a person that something-is-the-case.Logical formLearned from419 sentences. A sister may pertain-to a father.Logical formLearned from416 sentences. A person may love a sister.Logical formLearned from406 sentences. A sister can be beautiful.Logical formLearned from389 sentences. A son may pertain-to a sister.Logical formLearned from386 sentences. A sister can be dead.Logical formLearned from382 sentences. A person may call a sister.Logical formLearned from382 sentences. A person may tell a sister.Logical formLearned from380 sentences. A person may talk to a sister.Logical formLearned from370 sentences.