16891
FPP is also the source of isoprenoid side chains found attached to proteins .
 Chemical: FPP; Chemical: isoprenoid
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: FPP, isoprenoid 
Answer:
 Chemical: FPP; Chemical: isoprenoid