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In patients with unstable angina , flestolol infusion was found to be safe and effective in controlling chest pain .
 Disease: unstable angina; Chemical: flestolol; Disease: chest pain
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: unstable angina, flestolol, chest pain 
Answer:
 Disease: unstable angina; Chemical: flestolol; Disease: chest pain