rayin aryin ryain yrain ayrin yarin raiyn ariyn riayn irayn airyn iaryn ryian yrian riyan iryan yiran iyran ayirn yairn aiyrn iayrn yiarn iyarn rayni aryni ryani yrani ayrni yarni ranyi arnyi rnayi nrayi anryi naryi rynai yrnai rnyai nryai ynrai nyrai aynri yanri anyri nayri ynari nyari rainy ariny riany irany airny iarny raniy arniy rnaiy nraiy anriy nariy rinay irnay rniay nriay inray niray ainry ianry aniry nairy inary niary ryina yrina riyna iryna yirna iyrna rynia yrnia rnyia nryia ynria nyria rinya irnya rniya nriya inrya nirya yinra iynra ynira nyira inyra niyra ayinr yainr aiynr iaynr yianr iyanr aynir yanir anyir nayir ynair nyair ainyr ianyr aniyr naiyr inayr niayr yinar iynar yniar nyiar inyar niyar
Note: these 'words' (valid or invalid) are all the permutations of the word rayin. These words are obtained by scrambling the letters in rayin.