Premise: The United States Congress is the bicameral legislature of the federal government of the United States consisting of two chambers : the Senate and the House of Representatives . The United States House of Representatives is the lower chamber of the United States Congress which , along with the Senate , composes the legislature of the United States . The United States Senate is the upper chamber of the United States Congress which , along with the United States House of Representatives , the lower chamber , composes the legislature of the United States of America .
Hypothesis: The United States Congress lacks an upper chamber and a lower chamber.
Label: CONTRADICTION