7881
Thus , the PCE binds a Pbx dimer partner that behaves unlike Class I Hox proteins .
 GENE: PCE; GENE: Pbx dimer partner; GENE: Class I Hox proteins
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: PCE, Pbx dimer partner, Class I Hox proteins 
Answer:
 GENE: PCE; GENE: Pbx dimer partner; GENE: Class I Hox proteins