2135
The effect of the thromboxane A2 ( TXA2 ) / prostaglandin endoperoxide receptor antagonist , SQ 29 , 548 on pacing - induced ischemia was determined in anesthetized open - chest dogs .
 GENE: thromboxane A2 ( TXA2 ) / prostaglandin endoperoxide receptor
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
 Entities: thromboxane A2 ( TXA2 ) / prostaglandin endoperoxide receptor 
Answer:
 GENE: thromboxane A2 ( TXA2 ) / prostaglandin endoperoxide receptor