7659
Molecular characterization of a large Borrelia burgdorferi motility operon which is initiated by a consensus sigma70 promoter .
 GENE: sigma70 promoter
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: sigma70 promoter 
Answer:
 GENE: sigma70 promoter