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.

[EX Q]: 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'
[EX A]: be ban by

[EX Q]: Sentence: 'Tuesday we cruise to the Turkish port of Ephesus , the greatest city in Asia Minor during the Roman Empire .', Argument/Subject 1: 'ephesus', Argument/Subject 2: 'asia minor'
[EX A]: be city of

[EX Q]: Sentence: 'Obama now leads Clinton in likely Iowa caucus-goers .', Argument/Subject 1: 'obama', Argument/Subject 2: 'iowa'
[EX A]:
lead in