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We report the case of a young man, affected by rheumatoid arthritis who developed a rapid-onset short-of-breath, hemoptysis, and severe weakness, about 2 weeks after the administration of leflunomide.
 adverse event: developed 
Please tell me event type and its trigger word from given type options. Output format is "type: trigger".  Option: adverse event, potential therapeutic event 
Text: {0} 
Answer:
 adverse event: developed 