19388
We find the SLOS mouse has reduced levels of cholesterol and desmosterol and increased levels of 7 - and 8 - dehydrocholesterol and of 7 - and 8 - dehydrodesmosterol in brain compared to the wild type .
 Chemical: cholesterol; Chemical: desmosterol; Chemical: 7 - and 8 - dehydrocholesterol; Chemical: 7 - and 8 - dehydrodesmosterol
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: desmosterol; Chemical: 7 - and 8 - dehydrocholesterol; Chemical: 7 - and 8 - dehydrodesmosterol