1800
The altered effects of apomorphine and amphetamine could indicate differential changes in dopamine receptor signalling leading to functional desensitisation , or altered modulation of sensory gating in the nucleus accumbens by limbic structures such as the hippocampus .
 Chemical: apomorphine; Chemical: amphetamine; Chemical: dopamine
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: apomorphine, amphetamine, dopamine 
Answer:
 Chemical: apomorphine; Chemical: amphetamine; Chemical: dopamine