A person may think about a topic.Logical formLearned from188 sentences. A hot topic can be constituted-of-or-filled-with conversation.Logical formLearned from188 sentences. Aspects may pertain-to a topic.Logical formLearned from187 sentences. Persons may cover topics.Logical formLearned from187 sentences. A book can be on a topic.Logical formLearned from186 sentences. A topic may pertain-to a conversation.Logical formLearned from186 sentences. Topics can be for research.Logical formLearned from186 sentences. Topics can be weighty.Logical formLearned from185 sentences. Topics can be hot.Logical formLearned from185 sentences. A topic can be dominant.Logical formLearned from184 sentences. Advice can be on topics.Logical formLearned from183 sentences. A topic can be heated.Logical formLearned from183 sentences. A topic may be discussed.Logical formLearned from182 sentences. Topics may be presented.Logical formLearned from181 sentences. Discussion can be on topics.Logical formLearned from181 sentences.