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Effect of intravenous nimodipine on blood pressure and outcome after acute stroke .
 Chemical: nimodipine; Disease: acute stroke
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
 Entities: nimodipine, acute stroke 
Answer:
 Chemical: nimodipine; Disease: acute stroke