3633
Bilateral nephrectomy eliminated the beneficial effect of L - dopa on blood and brain ammonia and the ammonia coma was not prevented .
 Chemical: L - dopa; Chemical: ammonia; Chemical: ammonia; Disease: coma
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: L - dopa, ammonia, ammonia, coma 
Answer:
 Chemical: L - dopa; Chemical: ammonia; Chemical: ammonia; Disease: coma