3745
The ADP receptor P2Y ( 12 ) belongs to the superfamily of G protein - coupled receptors ( GPCRs ) , and its activation triggers platelet aggregation .
 Chemical: ADP
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: ADP