Assertion: senate | /r/CapableOf | vote on the petition
Facets:
Source sentences:
text: The Senate votes on the petition; three-fifths of the whole number of Senators (sixty if there are no vacancies) is the required majority; however, when cloture is invoked on a question of changing the rules of the Senate, two-thirds of the Senators voting (not necessarily two-thirds of all Senators) is the requisite majority.