Misspellings - Typos
opn-chain, poen-chain, open-cgain, opeen-chain, ipen-chain, oepn-chain, ppen-chain, open-hcain, open-chaon, open-vhain, openc-hain, open-chani, open-chaim, open-cchain, o[en-chain, open-xhain, ooen-chain, open--chain, oppen-chain, open-chian, open-cain, openn-chain, open-chhain, open-chsin, open-chainn, oopen-chain, open-chaun, ope-chain, open-hain, open-chaain, oprn-chain, opem-chain, opne-chain, openchain, open-chaiin, open-chin, opwn-chain, oen-chain, open-cjain, open-chan, ope-nchain, open-chai, open-chaib, pen-chain, open-cahin, opeb-chain