otran toran ortan rotan troan rtoan otarn toarn oatrn aotrn taorn atorn oratn roatn oartn aortn raotn arotn traon rtaon taron atron raton arton otrna torna ortna rotna trona rtona otnra tonra ontra notra tnora ntora ornta ronta onrta norta rnota nrota trnoa rtnoa tnroa ntroa rntoa nrtoa otanr toanr oatnr aotnr taonr atonr otnar tonar ontar notar tnoar ntoar oantr aontr onatr noatr anotr naotr tanor atnor tnaor ntaor antor nator orant roant oarnt aornt raont aront ornat ronat onrat norat rnoat nroat oanrt aonrt onart noart anort naort ranot arnot rnaot nraot anrot narot trano rtano tarno atrno ratno artno trnao rtnao tnrao ntrao rntao nrtao tanro atnro tnaro ntaro antro natro ranto arnto rnato nrato anrto narto
Note: these 'words' (valid or invalid) are all the permutations of the word otran. These words are obtained by scrambling the letters in otran.