1714
PCPA significantly and substantially depleted 5 - HT and 5 - HIAA in all brain regions examined .
 Chemical: PCPA; Chemical: 5 - HT; Chemical: 5 - HIAA
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: PCPA, 5 - HT, 5 - HIAA 
Answer:
 Chemical: PCPA; Chemical: 5 - HT; Chemical: 5 - HIAA