mercy vs re-sentencing

mercy and re-sentencing both are nouns.

Word	Noun	Adjective	Verb	Adverb
mercy	Yes	No	No	No
re-sentencing	Yes	No	No	No

As nouns, re-sentencing is a hyponym of mercy; that is, re-sentencing is a word with a more specific, narrower meaning than mercy:

mercy: leniency and compassion shown toward offenders by a person or agency charged with administering justice
re-sentencing: (law) the reduction in severity of a punishment imposed by law

Other hyponyms of mercy include commutation, amnesty, free pardon, pardon, quarter, reprieve, respite.

mercy (noun)	re-sentencing (noun)
leniency and compassion shown toward offenders by a person or agency charged with administering justice	(law) the reduction in severity of a punishment imposed by law
alleviation of distress; showing great kindness toward the distressed
a disposition to be kind and forgiving
the feeling that motivates compassion
something for which to be thankful