word	mesh	match	name	chebi
pyrimidine	mesh:C030986	NA	NA	NA
arginine	mesh:D001120	Arginine	arginine	chebi:29016
5-FU	mesh:D005472	Fluorouracil	5-fluorouracil	chebi:46345
uracil	mesh:D014498	Uracil	uracil	chebi:17568
uridine	mesh:D014529	Uridine	uridine	chebi:16704