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: 'A short time after the NFL banned Ephedra , also known by the Chinese been using EPHEDRA because EPHEDRA killed my houghton and I find them kind of headlines .', Argument/Subject 1: 'ephedron', Argument/Subject 2: 'nfl'

Answer: be ban by


Question: Sentence: 'London ( Britain capital city has shed its staid reputation .', Argument/Subject 1: 'london', Argument/Subject 2: 'britain'

Answer: be city in


Question: Sentence: 'Jackson is a city in Jackson County , Minnesota , United States .', Argument/Subject 1: 'jackson', Argument/Subject 2: 'jackson county'

Answer:
be city in