puton upton ptuon tpuon utpon tupon puotn upotn poutn oputn uoptn ouptn ptoun tpoun potun optun topun otpun utopn tuopn uotpn outpn toupn otupn putno uptno ptuno tpuno utpno tupno punto upnto pnuto nputo unpto nupto ptnuo tpnuo pntuo nptuo tnpuo ntpuo utnpo tunpo untpo nutpo tnupo ntupo puont upont pount opunt uopnt oupnt punot upnot pnuot npuot unpot nupot ponut opnut pnout npout onput noput uonpt ounpt unopt nuopt onupt noupt ptonu tponu potnu optnu topnu otpnu ptnou tpnou pntou nptou tnpou ntpou pontu opntu pnotu npotu onptu noptu tonpu otnpu tnopu ntopu ontpu notpu utonp tuonp uotnp outnp tounp otunp utnop tunop untop nutop tnuop ntuop uontp ountp unotp nuotp onutp noutp tonup otnup tnoup ntoup ontup notup
Note: these 'words' (valid or invalid) are all the permutations of the word puton. These words are obtained by scrambling the letters in puton.