2162
Synthetic oligonucleotides representing the 19 bp repeat unit strongly reduced the activity of the IE1 / 2 enhancer / promoter in cotransfection assays after transient expression .
 GENE: IE1 / 2 enhancer / promoter
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: IE1 / 2 enhancer / promoter 
Answer:
 GENE: IE1 / 2 enhancer / promoter