oopat oopat opoat pooat opoat pooat ooapt ooapt oaopt aoopt oaopt aoopt opaot poaot oapot aopot paoot apoot opaot poaot oapot aopot paoot apoot oopta oopta opota poota opota poota ootpa ootpa otopa toopa otopa toopa optoa potoa otpoa topoa ptooa tpooa optoa potoa otpoa topoa ptooa tpooa ooatp ooatp oaotp aootp oaotp aootp ootap ootap otoap tooap otoap tooap oatop aotop otaop toaop atoop taoop oatop aotop otaop toaop atoop taoop opato poato oapto aopto paoto apoto optao potao otpao topao ptoao tpoao oatpo aotpo otapo toapo atopo taopo patoo aptoo ptaoo tpaoo atpoo tapoo opato poato oapto aopto paoto apoto optao potao otpao topao ptoao tpoao oatpo aotpo otapo toapo atopo taopo patoo aptoo ptaoo tpaoo atpoo tapoo
Note: these 'words' (valid or invalid) are all the permutations of the word oopat. These words are obtained by scrambling the letters in oopat.