ddd ddh ddk ddo dds ddu dh- dhd dhh dhk dho dhs dhu dkk dko dks dku dod doh dok doo dos dou dsd dsh dsk dso dss dsu dud duh duk duo dus hdd hdh hdk hdo hds hdu hhd hhh hhk hho hhs hhu hkd hkh hkk hko hks hku hod hoh hok hoo hos hou hsd hsh hsk hss hsu hud huh huk huo hus huu kdh kdk kdo kds kdu khh khk kho khs khu kkh kkk kks kku kod koh kok koo kos kou ksd ksh ksk kso kss ksu kud kuh kuk kus kuu odd odh odo ods odu ohd ohh oho ohs ohu okd okk oko oks oku oo- ood ooh ook ooo oos os- osd osh osk oso oss osu ou- oud ouh ouk ouo ous sdd sdh sdk sdo sds sdu sh- shd shh shk sho shs shu sk- skd skh skk sko sks sku sod soh sok soo sos sou ss- ssd ssh ssk sso sss ssu sud suh suk suo sus suu udd udk udo uds udu uhd uhh uho uhs uhu ukk uku uod uok uoo uos usd ush usk uso uss usu uus uuu