A concept may work.Logical formLearned from619 sentences. A set can be constituted-of-or-filled-with concepts.Logical formLearned from612 sentences. Concepts can be operational.Logical formLearned from592 sentences. A person may understand a concept.Logical formLearned from579 sentences. Concepts may pertain-to a person.Logical formLearned from564 sentences. A concept can be cool.Logical formLearned from557 sentences. Concepts can be philosophical.Logical formLearned from555 sentences. A concept can be innovative.Logical formLearned from545 sentences. A concept may undergo an understanding.Logical formLearned from530 sentences. A person may have a concept.Logical formLearned from518 sentences. Concepts may undergo a development.Logical formLearned from511 sentences. A concept may pertain-to a country.Logical formLearned from495 sentences. A concept can be useful.Logical formLearned from470 sentences. A concept may undergo a development.Logical formLearned from468 sentences. A concept can be related.Logical formLearned from462 sentences.