3888
This is consistent with a model proposing that SSV was generated by recombination between proviral DNA of a simian sarcoma associated virus and proto - sis and that introns were spliced out subsequently from a fused viral - sis messenger RNA .
 GENE: proto - sis; GENE: viral - sis messenger RNA
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: proto - sis, viral - sis messenger RNA 
Answer:
 GENE: proto - sis; GENE: viral - sis messenger RNA