cores ocres croes rcoes orces roces coers ocers ceors ecors oecrs eocrs creos rceos ceros ecros recos ercos orecs roecs oercs eorcs reocs erocs corse ocrse crose rcose orcse rocse cosre ocsre csore score oscre socre crsoe rcsoe csroe scroe rscoe srcoe orsce rosce osrce sorce rsoce sroce coesr ocesr ceosr ecosr oecsr eocsr coser ocser csoer scoer oscer socer cesor ecsor cseor sceor escor secor oescr eoscr osecr soecr esocr seocr creso rceso cerso ecrso recso ercso crseo rcseo csreo screo rsceo srceo cesro ecsro csero scero escro secro resco ersco rseco sreco esrco serco oresc roesc oersc eorsc reosc erosc orsec rosec osrec sorec rsoec sroec oesrc eosrc oserc soerc esorc seorc resoc ersoc rseoc sreoc esroc seroc
Note: these 'words' (valid or invalid) are all the permutations of the word cores. These words are obtained by scrambling the letters in cores.