3264
Although its side effects are few , tamoxifen increases the incidence of proliferative lesions of the endometrium , which theoretically should be preventable with progestational agents .
 adverse effect: proliferative lesions of the endometrium, tamoxifen
Given options, please tell me the relationships of all the listed entity pairs.Output format is "relation1: word1, word2; relation2: word3, word4". 
Option: adverse effect 
Text: {0} 
 Entity Pairs:  proliferative lesions of the endometrium, tamoxifen 
Answer:
 adverse effect: proliferative lesions of the endometrium, tamoxifen