652
We have used the chloramphenicol acetyltransferase ( CAT ) reporter gene system to study the effect of T on the long terminal repeats ( LTRs ) of a large family of human endogenous retrovirus - like sequences , RTVL - H .
 GENE: chloramphenicol acetyltransferase; GENE: CAT; GENE: T
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: chloramphenicol acetyltransferase; GENE: CAT; GENE: T