A concept can be successful.Logical formLearned from84 sentences. A concept may undergo an evolution.Logical formLearned from83 sentences. Concepts can be adult.Logical formLearned from83 sentences. Concepts can be in a book.Logical formLearned from83 sentences. A concept may be developed.Logical formLearned from83 sentences. Concepts can be popular.Logical formLearned from83 sentences. A concept can be for an audience.Logical formLearned from83 sentences. A concept may be applied.Logical formLearned from83 sentences. A concept may pertain-to a family.Logical formLearned from83 sentences. Concepts may undergo a presentation.Logical formLearned from83 sentences. A concept can be useful.Logical formLearned from82 sentences. Students may understand concepts.Logical formLearned from82 sentences. A concept can be romantic.Logical formLearned from82 sentences. Concepts can be simple.Logical formLearned from82 sentences. A concept can be green.Logical formLearned from81 sentences.