1858
A case of high-grade endometrial stromal sarcoma, confined into an intrauterine polypoid growth, in a woman with a history of breast cancer who was treated with adjuvant tamoxifen.
 potential therapeutic event: treated 
Please tell me event type and its trigger word from given type options. Output format is "type: trigger".  Option: adverse event, potential therapeutic event 
Text: {0} 
Answer:
 potential therapeutic event: treated 