Am going to go with irony
Print dictionaries offer guide words at the top of each page in alphabetical order to give you some hints on whether or not you're on the right track in looking for your word.
To remind the audience of the theme or to make a claim seem logical
The answer would be Person Vs Person because the fishermans wife just wanted more and more from him not thinking about him at all just herself...and there was no other charater in the story but the fish, but the fish was giving the man gifts so he wouldn't be the problem so the wife was the conflict in the story that's why it would be Husband Vs Wife.
I hoped this helped!
Have a great day/night! :)