reais erais raeis areis earis aeris reias erias rieas ireas eiras ieras raies aries riaes iraes aires iares eairs aeirs eiars iears aiers iaers reasi erasi raesi aresi earsi aersi resai ersai rseai sreai esrai serai rasei arsei rsaei sraei asrei sarei easri aesri esari seari aseri saeri reisa erisa riesa iresa eirsa iersa resia ersia rseia sreia esria seria risea irsea rsiea sriea isrea sirea eisra iesra esira seira isera siera raise arise riase irase airse iarse rasie arsie rsaie sraie asrie sarie risae irsae rsiae sriae israe sirae aisre iasre asire saire isare siare eaisr aeisr eiasr ieasr aiesr iaesr easir aesir esair seair aseir saeir eisar iesar esiar seiar isear siear aiser iaser asier saier isaer siaer
Note: these 'words' (valid or invalid) are all the permutations of the word reais. These words are obtained by scrambling the letters in reais.