3897
The expression of chloramphenicol acetyltransferase was detected within 1 h after infection of cells with recombinant virus , reflecting the early nature of the promoters used .
 GENE: chloramphenicol acetyltransferase
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: chloramphenicol acetyltransferase 
Answer:
 GENE: chloramphenicol acetyltransferase