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This skill aims to provide users with authoritative, in-depth, and structured information verification services for any question. First, like a seasoned information verification expert, it meticulously deconstructs the user's question, identifying the question type, extracting core concepts, and planning an efficient and comprehensive search strategy, including designing multiple sets of keywords and identifying priority authoritative information sources. Next, it utilizes these strategies to conduct multiple rounds of online information retrieval, ensuring the collection of sufficiently diverse and high-quality authoritative information, covering academic, official, and professional media sources. After acquiring the information, the skill acts like a rigorous fact-checking expert, conducting authoritative assessments and cross-validation of all sources, identifying points of consensus and disagreement, and providing a comprehensive credibility rating based on the quantity and quality of evidence. Finally, it integrates all analysis results to generate a clearly structured and detailed report. This report not only directly answers the user's question but also clarifies core concepts, lists key evidence and sources, clearly points out uncertainties and controversies, and provides alternative solutions or guides the user to further their thinking. The entire process is designed to help users fully understand complex information and make informed judgments, and is especially suitable for users who need to conduct in-depth research, fact-checking, or seek reliable answers to questions in their professional fields.