6031
In addition to the protein - tyrosine kinase domain , p56lck possesses Src homology 2 and 3 ( SH2 and SH3 ) domains as well as a unique N - terminal region .
 GENE: protein - tyrosine kinase domain; GENE: p56lck; GENE: Src homology 2 and 3; GENE: SH2; GENE: SH3
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: protein - tyrosine kinase domain, p56lck, Src homology 2 and 3, SH2, SH3 
Answer:
 GENE: protein - tyrosine kinase domain; GENE: p56lck; GENE: Src homology 2 and 3; GENE: SH2; GENE: SH3