First base

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First, First aid, First to file and first to invent, First Minister and Deputy First Minister of Northern Ireland, First Minister of Scotland, First Beeline, First London, First baseman, First West Yorkshire, First Boston, First Student, FIRST Robotics Competition, First Worcester, First ladies of Nevada, First contact, First Act, First lady, First family, First Time, First Love, First woman, First Fruits, First degree, First impression, B2 First, First aid kit, First Nations, First Line, First man or woman, First ladies of Pennsylvania, First American, First Fleet, Who's on First?, First Light, First of May, First person, First Union, First Horizon Bank, Credit Suisse First Boston, First ascent, First Things First (album), First Things First, Kʼómoks First Nation, First National Pictures, First Cut, First Glasgow, The First Noel, Singaporeans First, Deputy First Minister of Scotland, First-person narrative, List of first ladies of Minnesota, Stoney Nakoda First Nation, First Hampshire & Dorset, Ɂakisq̓nuk First Nation, FIRST Tech Challenge, FIRST Lego League Challenge, First Ministers' conference, First Minister of Wales, First-class cricket, First-order, First-order logic, First responder, First-rate, First Artists, First Step, First Lady of the United States, First ladies and gentlemen of Alaska, First Nations in Ontario, First Kiss, First Nehru ministry, First ladies and gentlemen of North Carolina, First-person (video games), First Lady of Ethiopia, First South West, First strike, First Album, First ladies and gentlemen of Guam, First ladies of Wisconsin, First and Last, First American Financial Corporation, First Nations in Canada, First Presidency (LDS Church), First Chicago Bank, First Data, First Lady of Venezuela, First Republic of Korea, First Merchants Corporation, First grade, Be First, First ladies and gentlemen of Oklahoma, First minister, First Bus East of England, Dehcho First Nations, Breadth-first search, First Scotland East, First Growth, First principle, First day of issue, First-foot, Clovis First, First ladies and gentlemen of the Philippines, For the First Time, First West of England, First ladies and gentlemen of Mexico, First white child, First Lord of the Admiralty, First Nations in Alberta, First Blood, First pass effect, First sergeant, First-hitting-time model, Love at First Sight, First Hill, Seattle, People-first language, RSS First Step, First Lady of the Gambia, Wizard's First Rule, Ceremonial first pitch, First ladies of Maryland, FIRST Championship, FirstGroup, Maxillary first premolar, First Expired, First Out, First hand, The First 48, First Folio, First-wave feminism, First Evil, First World problem, First Things First (talk show), First Internet Bank, America First, First ladies of Hawaii, Certified first responder, The First, First ladies of North Dakota, Sq'éwlets First Nation, First Church, Mitaanjigamiing First Nation, First lieutenant, First Lady of Brazil, First class, First Sea Lord, First period, Sipekne'katik First Nation, First ladies and gentlemen of Gabon, First Second Books, First ladies of Missouri, First ladies and gentlemen of Slovakia, Beneteau First 14, First Twenty Years