doisc odisc diosc idosc oidsc iodsc dosic odsic dsoic sdoic osdic sodic disoc idsoc dsioc sdioc isdoc sidoc oisdc iosdc osidc soidc isodc siodc doics odics diocs idocs oidcs iodcs docis odcis dcois cdois ocdis codis dicos idcos dcios cdios icdos cidos oicds iocds ocids coids icods ciods dosci odsci dsoci sdoci osdci sodci docsi odcsi dcosi cdosi ocdsi codsi dscoi sdcoi dcsoi cdsoi scdoi csdoi oscdi socdi ocsdi cosdi scodi csodi disco idsco dsico sdico isdco sidco dicso idcso dciso cdiso icdso cidso dscio sdcio dcsio cdsio scdio csdio iscdo sicdo icsdo cisdo scido csido oiscd ioscd osicd soicd isocd siocd oicsd iocsd ocisd coisd icosd ciosd oscid socid ocsid cosid scoid csoid iscod sicod icsod cisod sciod csiod
Note: these 'words' (valid or invalid) are all the permutations of the word doisc. These words are obtained by scrambling the letters in doisc.