tripleset: Antioch, California IS_PART_OF Contra Costa County, California
tripleset: Contra Costa County, California IS_PART_OF San Francisco Bay Area
tripleset: Antioch, California LEADER_TITLE United States House of Representatives
annotations.source: webnlg webnlg webnlg
annotations.text: Antioch is part of Contra Costa County, located in the San Francisco Bay area of California. The leader of Antioch is the United States House of Representatives. Led by the United States House of Representatives, Antioch is part of Contra Costa County, part of the San Francisco Bay Area. Led by the United States House of Representatives, Antioch, part of Contra Costa County, which is part of the San Francisco Bay area, in California.