11419
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 a phrase that describes the relationship between two words, extract the words and the lexical relationship between them. The output format should be "relation1: word1, word2; relation2: word3, word4". 
Option: adverse effect 
Text: {0} 
Answer:
 adverse effect: proliferative lesions of the endometrium, tamoxifen