9968
A - ring modification of SCH 900229 and related chromene sulfone gamma - secretase inhibitors .
 Chemical: SCH 900229; Chemical: sulfone
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: SCH 900229, sulfone 
Answer:
 Chemical: SCH 900229; Chemical: sulfone