4323
In cortical neuronal cells , ( + ) 8 - OH - DPAT ( 1 mu M ) produced an elevation of the pERK 1 / 2 expression , and the elevated pERK levels were inhibited by WAY 100635 , a 5 - HT ( 1A ) receptor - specific antagonist .
 Chemical: ( + ) 8 - OH - DPAT; Chemical: WAY 100635
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: ( + ) 8 - OH - DPAT, WAY 100635 
Answer:
 Chemical: ( + ) 8 - OH - DPAT; Chemical: WAY 100635