nhpcu hnpcu nphcu pnhcu hpncu phncu nhcpu hncpu nchpu cnhpu hcnpu chnpu npchu pnchu ncphu cnphu pcnhu cpnhu hpcnu phcnu hcpnu chpnu pchnu cphnu nhpuc hnpuc nphuc pnhuc hpnuc phnuc nhupc hnupc nuhpc unhpc hunpc uhnpc npuhc pnuhc nuphc unphc punhc upnhc hpunc phunc hupnc uhpnc puhnc uphnc nhcup hncup nchup cnhup hcnup chnup nhucp hnucp nuhcp unhcp huncp uhncp ncuhp cnuhp nuchp unchp cunhp ucnhp hcunp chunp hucnp uhcnp cuhnp uchnp npcuh pncuh ncpuh cnpuh pcnuh cpnuh npuch pnuch nupch unpch punch upnch ncuph cnuph nucph uncph cunph ucnph pcunh cpunh pucnh upcnh cupnh ucpnh hpcun phcun hcpun chpun pchun cphun hpucn phucn hupcn uhpcn puhcn uphcn hcupn chupn hucpn uhcpn cuhpn uchpn pcuhn cpuhn puchn upchn cuphn ucphn
Note: these 'words' (valid or invalid) are all the permutations of the word nhpcu. These words are obtained by scrambling the letters in nhpcu.