4525
4 cases of endometrial carcinoma referred from elsewhere demonstrated the problems of inappropriate and unsupervised unopposed oestrogen therapy and the difficulty in distinguishing severe hyperplasia from malignancy .
 Disease: endometrial carcinoma; Chemical: oestrogen; Disease: hyperplasia; Disease: malignancy
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Disease: endometrial carcinoma; Chemical: oestrogen; Disease: hyperplasia; Disease: malignancy