2023
Organophosphates ( OP ) inhibit acetylcholinesterase ( AChE , EC 3 . 1 . 1 . 7 ) , both in peripheral tissues and central nervous system ( CNS ) , causing adverse and sometimes fatal effects due to the accumulation of neurotransmitter acetylcholine ( ACh ) .
 Chemical: Organophosphates; Chemical: acetylcholine; Chemical: ACh
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: Organophosphates; Chemical: acetylcholine; Chemical: ACh