3013
Based on our observations , we propose a model whereby inactive precursor molecules produced from the PEP4 gene self - activate within the yeast vacuole and subsequently activate other vacuolar hydrolases .
 GENE: PEP4 gene; GENE: vacuolar hydrolases
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: PEP4 gene, vacuolar hydrolases 
Answer:
 GENE: PEP4 gene; GENE: vacuolar hydrolases