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.

Sentence: 'Engineers continued to review photographs of the affected area to determine whether it could pose a problem when Atlantis returns to Earth .', Argument/Subject 1: 'atlanti', Argument/Subject 2: 'earth'
return to

Sentence: 'In just the last 2 days the Israelis have killed 29 Palestinians , and most of them are innocent civilians including children .', Argument/Subject 1: 'israeli', Argument/Subject 2: 'palestinian'
be kill by

Sentence: 'We know that ethnic cleansing and genocide are being used in the Darfur region of the Sudan as a method of counter-insurgency , resulting in approximately 50,000 to 100,000 deaths .', Argument/Subject 1: 'darfur', Argument/Subject 2: 'sudan'
be region in