orval roval ovral voral rvoal vroal oravl roavl oarvl aorvl raovl arovl ovarl voarl oavrl aovrl vaorl avorl rvaol vraol ravol arvol varol avrol orvla rovla ovrla vorla rvola vrola orlva rolva olrva lorva rlova lrova ovlra volra olvra lovra vlora lvora rvloa vrloa rlvoa lrvoa vlroa lvroa oralv roalv oarlv aorlv raolv arolv orlav rolav olrav lorav rloav lroav oalrv aolrv olarv loarv alorv laorv ralov arlov rlaov lraov alrov larov ovalr voalr oavlr aovlr vaolr avolr ovlar volar olvar lovar vloar lvoar oalvr aolvr olavr loavr alovr laovr valor avlor vlaor lvaor alvor lavor rvalo vralo ravlo arvlo varlo avrlo rvlao vrlao rlvao lrvao vlrao lvrao ralvo arlvo rlavo lravo alrvo larvo valro avlro vlaro lvaro alvro lavro
Note: these 'words' (valid or invalid) are all the permutations of the word orval. These words are obtained by scrambling the letters in orval.