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Cranial magnetic resonance imaging and extensive laboratory studies failed to reveal structural lesions of the brain and metabolic abnormalities .
 Disease: structural lesions of the brain; Disease: metabolic abnormalities
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: structural lesions of the brain, metabolic abnormalities 
Answer:
 Disease: structural lesions of the brain; Disease: metabolic abnormalities