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: 'Within each Trust there are Arts Care Committees , comprising an honourary chairperson and volunteers from the hospital staff , members of the Arts community in the area , and other interested parties .', Argument/Subject 1: 'committee', Argument/Subject 2: 'chairperson'
be comprise of

Sentence: 'The election of Illinois Senator Barack Obama as America 's 44th president is astounding , historical , implausible , improbable and completely without precedent in the history of the United States .', Argument/Subject 1: 'obama', Argument/Subject 2: 'america'
be president of

Sentence: 'We left Varanasi thinking we would have a somewhat hard 2 days of train and bus travel to Pokhara , Nepal where we would start the Anapurna trek .', Argument/Subject 1: 'trek', Argument/Subject 2: 'pokhara'

start from