A role can be vital.Logical formLearned from18 051 sentences. A part can be vital.Logical formLearned from10 183 sentences. Importance can be vital.Logical formLearned from6 305 sentences. Interests can be vital.Logical formLearned from3 923 sentences. Organs can be vital.Logical formLearned from2 923 sentences. A component can be vital.Logical formLearned from2 574 sentences. Interest can be vital.Logical formLearned from2 371 sentences. A link can be vital.Logical formLearned from2 159 sentences. Issues can be vital.Logical formLearned from1 953 sentences. Services can be vital.Logical formLearned from1 756 sentences. A step can be vital.Logical formLearned from1 644 sentences. An element can be vital.Logical formLearned from1 441 sentences. A tool can be vital.Logical formLearned from1 422 sentences. Functions can be vital.Logical formLearned from1 389 sentences. A source can be vital.Logical formLearned from1 316 sentences.