TASK DEFINITION: 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.
PROBLEM: Sentence: 'Genesis is the most vulnerable book in the whole Bible , quite apart from what science says .', Argument/Subject 1: 'genesis', Argument/Subject 2: 'bible'

SOLUTION: be book of

PROBLEM: Sentence: 'Champagne refers to a Sparkling Wine from France 's Champagne region .', Argument/Subject 1: 'champagne', Argument/Subject 2: 'france'

SOLUTION: be region of

PROBLEM: Sentence: 'Writer Grant Morrison has stated that he planned to retire Bruce Wayne as Batman , culminating with an arc appropriately titled " Batman RIP. "', Argument/Subject 1: 'bruce wayne', Argument/Subject 2: 'batman'

SOLUTION:
retire as