5411
Preliminary experiments demonstrated that it was possible to produce fasD mutants , whose products remain functional for fimbrial export and assembly .
 GENE: fasD mutants
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: fasD mutants 
Answer:
 GENE: fasD mutants