6491
The GTPase activity of CDC42Ce is moderately stimulated by human n - chimaerin , a GTPase - activating protein for the related p21 rac1 .
 GENE: GTPase; GENE: CDC42Ce; GENE: human n - chimaerin; GENE: GTPase - activating protein; GENE: p21; GENE: rac1
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: GTPase, CDC42Ce, human n - chimaerin, GTPase - activating protein, p21, rac1 
Answer:
 GENE: GTPase; GENE: CDC42Ce; GENE: human n - chimaerin; GENE: GTPase - activating protein; GENE: p21; GENE: rac1