pints ipnts pnits npits inpts nipts pitns iptns ptins tpins itpns tipns pntis nptis ptnis tpnis ntpis tnpis intps nitps itnps tinps ntips tnips pinst ipnst pnist npist inpst nipst pisnt ipsnt psint spint ispnt sipnt pnsit npsit psnit spnit nspit snpit inspt nispt isnpt sinpt nsipt snipt pitsn iptsn ptisn tpisn itpsn tipsn pistn ipstn psitn spitn isptn siptn ptsin tpsin pstin sptin tspin stpin itspn tispn istpn sitpn tsipn stipn pntsi nptsi ptnsi tpnsi ntpsi tnpsi pnsti npsti psnti spnti nspti snpti ptsni tpsni pstni sptni tspni stpni ntspi tnspi nstpi sntpi tsnpi stnpi intsp nitsp itnsp tinsp ntisp tnisp instp nistp isntp sintp nsitp snitp itsnp tisnp istnp sitnp tsinp stinp ntsip tnsip nstip sntip tsnip stnip
Note: these 'words' (valid or invalid) are all the permutations of the word pints. These words are obtained by scrambling the letters in pints.