appui papui appui papui ppaui ppaui apupi paupi auppi uappi puapi upapi apupi paupi auppi uappi puapi upapi ppuai ppuai pupai uppai pupai uppai appiu papiu appiu papiu ppaiu ppaiu apipu paipu aippu iappu piapu ipapu apipu paipu aippu iappu piapu ipapu ppiau ppiau pipau ippau pipau ippau apuip pauip aupip uapip puaip upaip apiup paiup aipup iapup piaup ipaup auipp uaipp aiupp iaupp uiapp iuapp puiap upiap piuap ipuap uipap iupap apuip pauip aupip uapip puaip upaip apiup paiup aipup iapup piaup ipaup auipp uaipp aiupp iaupp uiapp iuapp puiap upiap piuap ipuap uipap iupap ppuia ppuia pupia uppia pupia uppia ppiua ppiua pipua ippua pipua ippua puipa upipa piupa ipupa uippa iuppa puipa upipa piupa ipupa uippa iuppa
Note: these 'words' (valid or invalid) are all the permutations of the word appui. These words are obtained by scrambling the letters in appui.