28669
Alterations in cholesterol metabolism in the central nervous system are linked to several disorders such as Alzheimer ' s disease , Huntington disease , Parkinson disease , Multiple Sclerosis , Smith - Lemli - Opitz syndrome , Niemann - Pick type C disease , and glioblastoma .
 Chemical: cholesterol
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: cholesterol 
Answer:
 Chemical: cholesterol