3209
Possible mechanisms that involve a verapamil - related increase in platelet and / or vascular alpha 2 - adrenoreceptor affinity for catecholamines are discussed .
 Chemical: verapamil; Chemical: catecholamines
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: verapamil, catecholamines 
Answer:
 Chemical: verapamil; Chemical: catecholamines