12025
Inositol triphosphate ( InsP3 ) receptor antagonist 2 - APB ( 10 ( - 4 ) M ) significantly reduced , and high concentration of caffeine ( 20mM ) almost totally suppressed the contractions .
 Chemical: Inositol triphosphate; Chemical: 2 - APB; Chemical: caffeine
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: Inositol triphosphate; Chemical: 2 - APB; Chemical: caffeine