You are given a sentence and your task is to generate another sentence that supports the given input.

[EX Q]: An amine denotes an organic compound having a nitrogen atom singly or double bonded to a carbon atom and wherein the carbon atom bonded to the nitrogen atom is devoid of a double bond to oxygen, sulfur, selenium, or tellurium or triple bond to nitrogen.
[EX A]: Amines are classified according to the number of carbon atoms bonded directly to a(n) nitrogen atom.

[EX Q]: Carbides are binary compounds of carbon with an element that is less electronegative than it.
[EX A]: Binary compounds of carbon with less electronegative elements are called carbides.

[EX Q]: Gene expression, or the synthesis of specific proteins, is regulated mainly at the level of transcription, the process of making RNA copies of the DNA sequences that comprise the genes.
[EX A]:
Gene expression and protein synthesis are usually considered the same molecular process.