-er a-a aaa aad aae aah aak aao aar ad- ada add ade adh adk ado adr aea aed aee aeh aek aeo aer aha ahd ahe ahh ahk aho ahr aka akd ake akh akk ako akr aoa aod aoe aoh aok aoo aor ar- ara ard are arh ark aro arr daa dad dae dah dak dao dar dda ddd dde ddh ddk ddo ddr de- dea ded dee deh dek deo der dh- dha dhd dhe dhh dhk dho dhr dka dke dkk dko dkr doa dod doe doh dok doo dor dra drd dre drk dro drr eaa ead eae eah eak eao ear ed- eda edd ede edh edk edo edr eea eed eee eek eeo eer eha ehd ehe ehh eho ehr eka ekd eke ekh eko ekr eo- eoa eod eoe eoh eok eoo eor era erd ere erh erk ero err haa had hae hah hak hao har hda hdd hde hdh hdk hdo hdr he- hea hed hee heh hek heo her hha hhd hhe hhh hhk hho hhr hka hkd hkh hkk hko hkr hoa hod hoe hoh hok hoo hor hr- hra hrd hre hrh hrk hro hrr ka- kaa kad kae kah kak kao kar kda kde kdh kdk kdo kdr ke- kea ked kee keh kek keo ker kha khe khh khk kho khr kke kkh kkk kkr koa kod koe koh kok koo kor kra krd krk kro krr oaa oad oae oah oak oao oar oda odd ode odh odo odr oea oed oee oeh oeo oer oha ohd ohe ohh oho ohr oka okd oke okk oko okr oo- ooa ood ooh ook ooo oor or- ora ord ore orh ork oro orr ra- raa rad rae rah rak rao rar rda rdd rde rdh rdo rdr re- rea red ree reh rek reo rer rh- rha rhd rhe rhh rho rhr rke rkk rko roa rod roe roh rok roo ror rra rrd rrh rrk rrr