instruction:
In this task, you are given a sentence. You are expected to recognize the name of any form of chemical substances. Although there might be several correct answers, you need to write one of them.
question:
Stable and high-rate overcharge protection for rechargeable lithium batteries.
answer:
lithium


question:
Adipose tissue as a source of nicotinamide N-methyltransferase and homocysteine.
answer:
nicotinamide


question:
Neonatal epileptic encephalopathy caused by mutations in the PNPO gene encoding pyridox(am)ine 5'-phosphate oxidase.
answer:

pyridox(am)ine 5'-phosphate