virga ivrga vriga rviga irvga rivga vigra ivgra vgira gvira igvra givra vrgia rvgia vgria gvria rgvia grvia irgva rigva igrva girva rgiva griva virag ivrag vriag rviag irvag rivag viarg ivarg vairg avirg iavrg aivrg vraig rvaig varig avrig ravig arvig iravg riavg iarvg airvg raivg arivg vigar ivgar vgiar gviar igvar givar viagr ivagr vaigr avigr iavgr aivgr vgair gvair vagir avgir gavir agvir igavr giavr iagvr aigvr gaivr agivr vrgai rvgai vgrai gvrai rgvai grvai vragi rvagi vargi avrgi ravgi arvgi vgari gvari vagri avgri gavri agvri rgavi gravi ragvi argvi garvi agrvi irgav rigav igrav girav rgiav griav iragv riagv iargv airgv raigv arigv igarv giarv iagrv aigrv gairv agirv rgaiv graiv ragiv argiv gariv agriv
Note: these 'words' (valid or invalid) are all the permutations of the word virga. These words are obtained by scrambling the letters in virga.