pipas ippas ppias ppias ippas pipas piaps ipaps paips apips iapps aipps ppais ppais papis appis papis appis ipaps piaps iapps aipps paips apips pipsa ippsa ppisa ppisa ippsa pipsa pispa ipspa psipa spipa isppa sippa ppsia ppsia pspia sppia pspia sppia ipspa pispa isppa sippa psipa spipa piasp ipasp paisp apisp iapsp aipsp pisap ipsap psiap spiap ispap sipap pasip apsip psaip spaip aspip sapip iaspp aispp isapp siapp asipp saipp ppasi ppasi papsi appsi papsi appsi ppsai ppsai pspai sppai pspai sppai paspi apspi psapi spapi asppi sappi paspi apspi psapi spapi asppi sappi ipasp piasp iapsp aipsp paisp apisp ipsap pisap ispap sipap psiap spiap iaspp aispp isapp siapp asipp saipp pasip apsip psaip spaip aspip sapip
Note: these 'words' (valid or invalid) are all the permutations of the word pipas. These words are obtained by scrambling the letters in pipas.