stoppage vs human action

stoppage and human action both are nouns.

Word	Noun	Adjective	Verb	Adverb
stoppage	Yes	No	No	No
human action	Yes	No	No	No

As nouns, human action is a hypernym of stoppage; that is, human action is a word with a broader meaning than stoppage:

Other hypernyms of stoppage include act, deed, human activity.

stoppage (noun)	human action (noun)
the act of stopping something	something that people do or cause to happen
an obstruction in a pipe or tube
the state of inactivity following an interruption