borel obrel broel rboel orbel robel boerl oberl beorl eborl oebrl eobrl breol rbeol berol ebrol rebol erbol orebl roebl oerbl eorbl reobl erobl borle obrle brole rbole orble roble bolre oblre blore lbore olbre lobre brloe rbloe blroe lbroe rlboe lrboe orlbe rolbe olrbe lorbe rlobe lrobe boelr obelr beolr ebolr oeblr eoblr boler obler bloer lboer olber lober belor eblor bleor lbeor elbor lebor oelbr eolbr olebr loebr elobr leobr brelo rbelo berlo ebrlo reblo erblo brleo rbleo blreo lbreo rlbeo lrbeo belro eblro blero lbero elbro lebro relbo erlbo rlebo lrebo elrbo lerbo orelb roelb oerlb eorlb reolb erolb orleb roleb olreb loreb rloeb lroeb oelrb eolrb olerb loerb elorb leorb relob erlob rleob lreob elrob lerob
Note: these 'words' (valid or invalid) are all the permutations of the word borel. These words are obtained by scrambling the letters in borel.