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.
--------
Question: 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'

Answer: be book of


Question: Sentence: 'The VIAGRA is still tremendous , but VIAGRA is exchanger silly buggers with VIAGRA certain side effects Buy Viagra Online .', Argument/Subject 1: 'viagra', Argument/Subject 2: 'online'

Answer: buy


Question: Sentence: 'One example of Arab racism is the myth that the Arabs are descendants of Abraham through his son Ishmael .', Argument/Subject 1: 'ishmael', Argument/Subject 2: 'abraham'

Answer:
be son of