1971
Three subgenomes also comprised 15 to 75 nucleotides derived from the 5 ' part of the NS2 gene .
 GENE: NS2 gene
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: NS2 gene