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