First countable

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First, First aid, First to file and first to invent, First London, First Beeline, First Minister and Deputy First Minister of Northern Ireland, First Minister of Scotland, First baseman, First Boston, First West Yorkshire, First Student, FIRST Robotics Competition, First Worcester, First Act, First lady, First contact, First Love, First woman, First degree, First aid kit, First Time, First family, B2 First, First Fruits, First impression, First Light, First Nations, First ladies of Pennsylvania, First American, Credit Suisse First Boston, First Line, First person, First man or woman, First ascent, Who's on First?, First Union, First Fleet, First of May, First Horizon Bank, FIRST Tech Challenge, First ladies of Nevada, First Things First (album), Singaporeans First, First-order logic, First National Pictures, Kʼómoks First Nation, The First Noel, First Glasgow, FIRST Lego League Challenge, Stoney Nakoda First Nation, List of first ladies of Minnesota, First Cut, First Hampshire & Dorset, First-class cricket, Deputy First Minister of Scotland, First-person narrative, Ɂakisq̓nuk First Nation, First Minister of Wales, First Ministers' conference, First Lady of the United States, First ladies and gentlemen of North Carolina, First Things First, First Artists, First responder, First-order, First ladies and gentlemen of Alaska, First-rate, First Step, First Nations in Ontario, First Kiss, First Nehru ministry, First-person (video games), First Lady of Ethiopia, First ladies and gentlemen of Guam, First South West, First principle, First and Last, First Album, First ladies of Wisconsin, First 100 days of the first Trump presidency, First Republic of Korea, First strike, First American Financial Corporation, First Presidency (LDS Church), First Merchants Corporation, First Lady of Venezuela, Breadth-first search, First grade, First Bus East of England, First minister, First Chicago Bank, First Growth, First Data, First ladies and gentlemen of Oklahoma, Be First, First Scotland East, First ladies and gentlemen of the Philippines, First-foot, First Dates, Dehcho First Nations, First Lord of the Admiralty, First ladies and gentlemen of Mexico, First-hitting-time model, Clovis First, First-wave feminism, For the First Time, First ladies of Maryland, First Blood, The First 48, First Nations in Canada, First day of issue, First Lady of the Gambia, First West of England, First Hill, Seattle, First ladies of Florida, First pass effect, FIRST Championship, First Expired, First Out, Love at First Sight, First white child, First sergeant, RSS First Step, First World problem, First lieutenant, Wizard's First Rule, FirstGroup, Ceremonial first pitch, First Folio, Maxillary first premolar, First Second Books, First Church, First Things First (talk show), Mitaanjigamiing First Nation, Certified first responder, First ladies of North Dakota, First hand, Sq'éwlets First Nation, First Evil, First class, First Internet Bank, Sipekne'katik First Nation, First Lady of Brazil, First ladies and gentlemen of Arkansas, Nanoose First Nation, First-mover advantage, First Nations in Alberta, First Sea Lord, First period, The First, First ladies and gentlemen of Gabon, Sofia the First