inputs: hypothesis: Barak Obama is the 44th President of the United States. premise: Bush's second term as President of the United States, which began on January 20, 2005, expired with the swearing-in of the 44th President of the United States, Barack Obama, at noon EST (UTC-5), under the provisions of the Twentieth Amendment to the United States Constitution. Bush performed his final official act this morning, welcoming Barack Obama and Michelle to the White House for coffee before the swearing-in, shortly before 10am EST, and then accompanied them there by motorcade to attend the ceremony. Last week, Bush had made his farewells to the nation in a televised address, saying that the inauguration turns a page in race relations. "Obama's story ―his black father was from Kenya, his white mother from Kansas ―represents "the enduring promise of our land," said Bush.