caups acups cuaps ucaps aucps uacps capus acpus cpaus pcaus apcus pacus cupas ucpas cpuas pcuas upcas pucas aupcs uapcs apucs paucs upacs puacs causp acusp cuasp ucasp aucsp uacsp casup acsup csaup scaup ascup sacup cusap ucsap csuap scuap uscap sucap auscp uascp asucp saucp usacp suacp capsu acpsu cpasu pcasu apcsu pacsu caspu acspu csapu scapu ascpu sacpu cpsau pcsau cspau scpau pscau spcau apscu pascu aspcu sapcu psacu spacu cupsa ucpsa cpusa pcusa upcsa pucsa cuspa ucspa csupa scupa uscpa sucpa cpsua pcsua cspua scpua pscua spcua upsca pusca uspca supca psuca spuca aupsc uapsc apusc pausc upasc puasc auspc uaspc asupc saupc usapc suapc apsuc pasuc aspuc sapuc psauc spauc upsac pusac uspac supac psuac spuac
Note: these 'words' (valid or invalid) are all the permutations of the word caups. These words are obtained by scrambling the letters in caups.