1429
Even though we found no gross cerebellar degeneration in older Atm ( y / y ) animals , ectopic and abnormally differentiated Purkinje cells were apparent in mutant mice of all ages .
 Disease: cerebellar degeneration
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Disease 
Text: {0} 
 Entities: cerebellar degeneration 
Answer:
 Disease: cerebellar degeneration