6781
In the uterus , cholesterol is essential to achieve correct contractions at term , but an excessive uterine cholesterol concentration has been associated with contractility defects .
 Chemical: cholesterol; Chemical: cholesterol
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: cholesterol; Chemical: cholesterol