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.

[EX Q]: Effects of folic acid deficiency and MTHFR C677T polymorphism on spontaneous and radiation-induced micronuclei in human lymphocytes.
[EX A]: folic acid

[EX Q]: Cell cycle arrest, extracellular matrix changes and intrinsic apoptosis in human melanoma cells are induced by Boron Neutron Capture Therapy.
[EX A]: Boron

[EX Q]: Analysis of mammalian alcohol dehydrogenase 5 (ADH5): characterisation of rat ADH5 with comparisons to the corresponding human variant.
[EX A]:
alcohol