5773
Protein tyrosine phosphatase 1B ( PTP1B ) is an important factor in non - insulin - dependent diabetes mellitus ( type - 2 diabetes ) , and a promising target for treatment of diabetes and obesity .
 Chemical: tyrosine
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: tyrosine