10247
Thus , CHOP not only is a negative or a positive regulator of C / EBP target genes but also , when tethered to AP - 1 factors , can activate AP - 1 target genes .
 GENE: CHOP; GENE: C / EBP; GENE: AP - 1 factors; GENE: AP - 1
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: CHOP, C / EBP, AP - 1 factors, AP - 1 
Answer:
 GENE: CHOP; GENE: C / EBP; GENE: AP - 1 factors; GENE: AP - 1