oappl aoppl opapl poapl apopl paopl oappl aoppl opapl poapl apopl paopl oppal popal oppal popal ppoal ppoal appol papol appol papol ppaol ppaol oaplp aoplp opalp poalp apolp paolp oalpp aolpp olapp loapp alopp laopp oplap polap olpap lopap ploap lpoap aplop palop alpop lapop plaop lpaop oaplp aoplp opalp poalp apolp paolp oalpp aolpp olapp loapp alopp laopp oplap polap olpap lopap ploap lpoap aplop palop alpop lapop plaop lpaop oppla popla oppla popla ppola ppola oplpa polpa olppa loppa plopa lpopa oplpa polpa olppa loppa plopa lpopa pploa pploa plpoa lppoa plpoa lppoa applo paplo applo paplo ppalo ppalo aplpo palpo alppo lappo plapo lpapo aplpo palpo alppo lappo plapo lpapo pplao pplao plpao lppao plpao lppao
Note: these 'words' (valid or invalid) are all the permutations of the word oappl. These words are obtained by scrambling the letters in oappl.