orpac ropac oprac porac rpoac proac orapc roapc oarpc aorpc raopc aropc oparc poarc oaprc aoprc paorc aporc rpaoc praoc rapoc arpoc paroc aproc orpca ropca oprca porca rpoca proca orcpa rocpa ocrpa corpa rcopa cropa opcra pocra ocpra copra pcora cpora rpcoa prcoa rcpoa crpoa pcroa cproa oracp roacp oarcp aorcp raocp arocp orcap rocap ocrap corap rcoap croap oacrp aocrp ocarp coarp acorp caorp racop arcop rcaop craop acrop carop opacr poacr oapcr aopcr paocr apocr opcar pocar ocpar copar pcoar cpoar oacpr aocpr ocapr coapr acopr caopr pacor apcor pcaor cpaor acpor capor rpaco praco rapco arpco parco aprco rpcao prcao rcpao crpao pcrao cprao racpo arcpo rcapo crapo acrpo carpo pacro apcro pcaro cparo acpro capro
Note: these 'words' (valid or invalid) are all the permutations of the word orpac. These words are obtained by scrambling the letters in orpac.