1976
The order of the helicase motif and the nsP3 homology region in the RUB genome is reversed with respect to the alphavirus genome indicating that a genetic rearrangement has occurred during the evolution of these viruses .
 GENE: helicase motif; GENE: nsP3 homology region
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: helicase motif, nsP3 homology region 
Answer:
 GENE: helicase motif; GENE: nsP3 homology region