2110
However , experiments with S1 mapping of in vivo transcripts , gene disruptions in the alpha region , and a single - copy transcriptional fusion vector all suggested that these possible promoters were largely inactive during logarithmic growth , that the major promoter for the alpha operon lay upstream from the region cloned , and that the genes in the IF1 to L17 interval were cotranscribed .
 GENE: S1; GENE: IF1; GENE: L17
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: S1, IF1, L17 
Answer:
 GENE: S1; GENE: IF1; GENE: L17