6363
Therefore , to clarify this ambiguity this study verifies whether P2X3 receptor activation on primary afferent neurons enables the sensitization induced by prostaglandin E ( 2 ) or sympathomimetic amine .
 Chemical: prostaglandin E ( 2 ); Chemical: amine
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: prostaglandin E ( 2 ); Chemical: amine