1568
Cresyl saligenin phosphate makes multiple adducts on free histidine , but does not form an adduct on histidine 438 of human butyrylcholinesterase .
 Chemical: Cresyl saligenin phosphate; Chemical: histidine; Chemical: histidine
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: Cresyl saligenin phosphate; Chemical: histidine; Chemical: histidine