1347
This complex was eliminated by mutation of either half - site , and it was supershifted by antibodies against chicken ovalbumin upstream promoter - transcription factor ( COUP - TF ) .
 GENE: chicken ovalbumin upstream promoter - transcription factor; GENE: COUP - TF
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 GENE: chicken ovalbumin upstream promoter - transcription factor; GENE: COUP - TF