7592
Acetoin - dependent expression of the acoABCD operon could be restored in the E . coli acoK mutants by supplying a plasmid carrying an intact acoK , suggesting a transactivating function of the gene product .
 GENE: acoABCD operon; GENE: E . coli acoK mutants; GENE: acoK
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: acoABCD operon, E . coli acoK mutants, acoK 
Answer:
 GENE: acoABCD operon; GENE: E . coli acoK mutants; GENE: acoK