A topic may pertain-to a discussion.Logical formLearned from203 sentences. A topic can be delicate.Logical formLearned from202 sentences. Topics can be for discussion.Logical formLearned from201 sentences. Topics can be constituted-of-or-filled-with research.Logical formLearned from200 sentences. Topics may be covered in a news-service.Logical formLearned from200 sentences. Topics can be on an agenda.Logical formLearned from199 sentences. Topics may be studied.Logical formLearned from198 sentences. Links can be to topics.Logical formLearned from198 sentences. A topic may pertain-to a week.Logical formLearned from198 sentences. Discussions can be on a topic.Logical formLearned from197 sentences. A topic can be complicated.Logical formLearned from197 sentences. Some articles can be on topics.Logical formLearned from194 sentences. Courses can be on topics.Logical formLearned from193 sentences. Literature can be on a topic.Logical formLearned from193 sentences. Topics can be substantive.Logical formLearned from190 sentences.