Given a sentence and two mentions from the text (arguments), indicate a phrase (a verb or noun phrase) that describes the relationship between the provided arguments.

[Q]: Sentence: 'The astronomer William Herschel discovered Uranus on the 13th of March 1781 .', Argument/Subject 1: 'william herschel', Argument/Subject 2: 'uranus'
[A]: discover

[Q]: Sentence: 'A look at the Pittsburgh Steelers ' six Super Bowl wins .', Argument/Subject 1: 'pittsburgh steeler', Argument/Subject 2: 'super bowl'
[A]: win

[Q]: Sentence: 'John Lennon widow Yoko Ono has urged prison bosses not to free murderer Mark Chapman - insisting he will be killed if he is released .', Argument/Subject 1: 'yoko ono', Argument/Subject 2: 'john lennon'
[A]:
be widow of