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.

Sentence: 'Manmohan Singh is sworn in Prime Minister heading a 68-member Ministry , the first-ever Congress-led coalition , United Progressive Alliance .', Argument/Subject 1: 'ministry', Argument/Subject 2: 'minister'
be head by

Sentence: 'Nazi Germany 's attack on the Soviet Union in June 1941 extended the zone of killing operations even farther east .', Argument/Subject 1: 'germany', Argument/Subject 2: 'soviet union'
attack

Sentence: 'Pancakes are the traditional food of Shrove Tuesday , the day before Ash Wednesday .', Argument/Subject 1: 'shrive tuesday', Argument/Subject 2: 'ash wednesday'
be day before