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The present study aimed to investigate the effects of pallidal neurotensin on haloperidol - induced parkinsonian symptoms .
 Chemical: neurotensin; Chemical: haloperidol; Disease: parkinsonian symptoms
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: neurotensin, haloperidol, parkinsonian symptoms 
Answer:
 Chemical: neurotensin; Chemical: haloperidol; Disease: parkinsonian symptoms