5048
The beta subunit of the Fc epsilon R1 is a 33 - kDa tyrosine phosphoprotein , but the p33 Grb2 - binding protein described in the present report is not the Fc epsilon R1 beta chain and its identity is unknown .
 GENE: Fc epsilon R1; GENE: p33; GENE: Grb2 - binding protein; GENE: Fc epsilon R1 beta chain
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: Fc epsilon R1, p33, Grb2 - binding protein, Fc epsilon R1 beta chain 
Answer:
 GENE: Fc epsilon R1; GENE: p33; GENE: Grb2 - binding protein; GENE: Fc epsilon R1 beta chain