8770
Focusing on the Yersinia pestis outer protein H , a potent bacterial protein tyrosine phosphatase , we describe how an understanding of the kinetic interactions involving Yersinia pestis outer protein H , peptide substrates , and small - molecule inhibitors of protein tyrosine phosphatase activity can be beneficial for inhibitor screening , and we further translate these results into a microarray assay for high - throughput screening .
 Chemical: tyrosine; Chemical: tyrosine
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: tyrosine, tyrosine 
Answer:
 Chemical: tyrosine; Chemical: tyrosine