upanh puanh uapnh aupnh paunh apunh upnah punah unpah nupah pnuah npuah uanph aunph unaph nuaph anuph nauph panuh apnuh pnauh npauh anpuh napuh upahn puahn uaphn auphn pauhn apuhn uphan puhan uhpan hupan phuan hpuan uahpn auhpn uhapn huapn ahupn haupn pahun aphun phaun hpaun ahpun hapun upnha punha unpha nupha pnuha npuha uphna puhna uhpna hupna phuna hpuna unhpa nuhpa uhnpa hunpa nhupa hnupa pnhua nphua phnua hpnua nhpua hnpua uanhp aunhp unahp nuahp anuhp nauhp uahnp auhnp uhanp huanp ahunp haunp unhap nuhap uhnap hunap nhuap hnuap anhup nahup ahnup hanup nhaup hnaup panhu apnhu pnahu npahu anphu naphu pahnu aphnu phanu hpanu ahpnu hapnu pnhau nphau phnau hpnau nhpau hnpau anhpu nahpu ahnpu hanpu nhapu hnapu
Note: these 'words' (valid or invalid) are all the permutations of the word upanh. These words are obtained by scrambling the letters in upanh.