7471
BACKGROUND : Mitosis is regulated by MPF ( maturation promoting factor ) , the active form of Cdc2 / 28 - cyclin B complexes .
 GENE: MPF; GENE: maturation promoting factor; GENE: Cdc2 / 28; GENE: cyclin B
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: MPF, maturation promoting factor, Cdc2 / 28, cyclin B 
Answer:
 GENE: MPF; GENE: maturation promoting factor; GENE: Cdc2 / 28; GENE: cyclin B