15393
We also show that perinatal PCP administration leads to an increased NRG - 1 expression in the cortex and hippocampus .
 Chemical: PCP
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: PCP 
Answer:
 Chemical: PCP