4640
All four doubly tyrosine phosphorylated TAM peptides cross - compete with each other for binding to the tandem SH2 domains of ZAP - 70 .
 GENE: SH2 domains; GENE: ZAP - 70
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: SH2 domains, ZAP - 70 
Answer:
 GENE: SH2 domains; GENE: ZAP - 70