1442
Oxysterol generation and liver X receptor - dependent reverse cholesterol transport : not all roads lead to Rome .
 Chemical: Oxysterol; 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: Oxysterol; Chemical: cholesterol