11879
Taken together , PTE is a potent inhibitor of osteosarcoma cell growth that targets the JAK2 / STAT3 signaling pathway .
 Chemical: PTE
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: PTE 
Answer:
 Chemical: PTE