6851
We found strand selective repair in DNA fragments within two active genes , DHFR and an unknown gene adjacent to DHFR .
 GENE: DHFR; GENE: DHFR
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: DHFR, DHFR 
Answer:
 GENE: DHFR; GENE: DHFR