Misspellings - Typos
first [eriod, firts period, ffirst period, first peroid, first prriod, first poriod, first perios, furst period, first periiod, fiest period, first eriod, first perid, dirst period, first peirod, first perido, first perood, first oeriod, first petiod, firt period, first peripd, first perriod, frst period, first periid, first peiod, ifrst period, first periodd, firrst period, firdt period, firat period, first period, fist period, first pwriod, firs tperiod, first periof, firsy period, first priod, firstperiod, fitst period, girst period, first perod, frist period, first perio, first pperiod, forst period, first peeriod, first peeiod, first periood, irst period, fisrt period, firsr period, fiirst period, firstt period, firsst period, first epriod, firs period, firstp eriod, first preiod, first peruod