proas rpoas poras opras ropas orpas praos rpaos paros apros rapos arpos poars opars paors apors oaprs aoprs roaps oraps raops arops oarps aorps prosa rposa porsa oprsa ropsa orpsa prsoa rpsoa psroa sproa rspoa srpoa posra opsra psora spora ospra sopra rospa orspa rsopa sropa osrpa sorpa praso rpaso parso aprso rapso arpso prsao rpsao psrao sprao rspao srpao pasro apsro psaro sparo aspro sapro raspo arspo rsapo srapo asrpo sarpo poasr opasr paosr aposr oapsr aopsr posar opsar psoar spoar ospar sopar pasor apsor psaor spaor aspor sapor oaspr aospr osapr soapr asopr saopr roasp orasp raosp arosp oarsp aorsp rosap orsap rsoap sroap osrap sorap rasop arsop rsaop sraop asrop sarop oasrp aosrp osarp soarp asorp saorp
Note: these 'words' (valid or invalid) are all the permutations of the word proas. These words are obtained by scrambling the letters in proas.