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: 'Anteros is the twin brother of Eros .', Argument/Subject 1: 'antero', Argument/Subject 2: 'ero'
[EX A]: be brother of

[EX Q]: Sentence: 'Wyoming Easter also marks the end of Lent , a season of prayer and penance .', Argument/Subject 1: 'easter', Argument/Subject 2: 'lend'
[EX A]: mark end of

[EX Q]: Sentence: 'ECONOMIC DEVELOPMENT HOUSING AUTHORITY BOARD - APPOINT STEVE GANDER AS COUNCIL REPRESENTATIVE TO FILL THE VACANCY CREATED BY THE RESIGNATION OF RON GALSTAD.', Argument/Subject 1: 'vacancy', Argument/Subject 2: 'board'
[EX A]:
be fill by