Misspellings - Typos
open ibterval, open interavl, opwn interval, openn interval, open intreval, open intervl, open interva;, open inetrval, open inteval, open inteerval, open intetval, open imterval, oppen interval, ipen interval, open intervall, open intrrval, ope ninterval, open intevral, open interva, open interrval, open intercal, opn interval, ooen interval, ope interval, open interval, open innterval, open intterval, open inyerval, open iinterval, open intervsl, open interbal, open onterval, open inteeval, oen interval, open itnerval, open intervla, poen interval, opem interval, open inerval, ppen interval, open intervak, open intwrval, open niterval, o[en interval, oepn interval, open intrval, oopen interval, open intorval, opeen interval, pen interval, open iterval, open intervaal, open intervval, openi nterval, open interal, open nterval, open inrerval, oprn interval, opne interval, openinterval, open unterval, opeb interval