# Use Case **Online/offline marathon ticketing** Users can use their AIR to purchase tickets for various offline marathons and participate in online marathons by ticketing through AIR. **Marketplace** Users can use AIR to buy AIRian and AIRian-branded clothing and commerce on the marketplace. Like AIRian characters, AIRian commerce will also be released in limited quantities. **Raffle** Branding products or diverse opportunities/tickets from partners will be drawn by raffle system, and also unique items, which help users to maximize mining capability, can be appeared from raffle. **Challenges and crew competitions** Users can participate in or create their challenges using AIR. You risk a certain amount of AIR as collateral and receive additional AIR compensation when you achieve your goals. If the goal is not achieved, the guaranteed AIR will be spent, and the amount of compensation may vary depending on the difficulty level. **Crew activities** Users can create and manage crews with crew members using AIR. In addition to offline running crews, diverse runners worldwide can participate as online running crews. We also have the opportunity to spread the crew word through various crew promotions. **Healthcare Data Collection & Utilization** Data from various running users are collected, and it is possible to provide easier services, such as recommending walking or running methods and courses that match the user's characteristics. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://airian.gitbook.io/airian-whitepaper/token/use-case.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.