a-a a-t aaa aad aaf aak aao aar aas aat aau ad- ada add adf adk ado adr ads adt adu af- afa afd aff afk afo afr afs aft afu aka akd akk ako akr aks aku aoa aod aof aok aoo aor aos aot aou ar- ara ard arf ark aro arr ars art aru as- asa asd asf ask aso asr ass ast asu at- ata atd atf ato atr ats att atu au- aua aud auf auk auo aur aus aut daa dad daf dak dao dar das dat dau dda ddd ddf ddk ddo ddr dds ddt ddu dfa dfd dff dfk dfo dfr dfs dft dfu dka dkk dko dkr dks dkt dku doa dod dof dok doo dor dos dot dou dra drd drk dro drr drs drt dru dsa dsd dsf dsk dso dsr dss dst dsu dta dtd dtf dtk dto dtr dts dtt dtu dua dud duf duk duo dur dus dut faa fad faf fak fao far fas fat fau fda fdd fdf fdk fdo fdr fds fdt fdu ffa ffd fff ffk ffo ffr ffs fft ffu fka fkf fkk fkt foa fof fok foo for fos fot fou fra frd frf frk fro frr frs frt fru fsa fsd fsf fsk fso fsr fss fst fsu fta ftd ftf ftk fto ftr fts ftt ftu fua fud fuf fuk fuo fur fus fut fuu k-t ka- kaa kad kaf kak kao kar kas kat kau kda kdf kdk kdo kdr kds kdt kdu kfa kfd kff kfo kfs kfu kkk kkr kks kkt kku koa kod kof kok koo kor kos kot kou kra krd krf krk kro krr krs krt kru ksa ksd ksf ksk kso ksr kss kst ksu kta ktf ktk kto ktr kts ktt ktu kud kuk kur kus kut kuu oaa oad oaf oak oao oar oas oat oau oda odd odf odo odr ods odt odu of- ofa ofd off ofo ofr ofs oft ofu oka okd okk oko okr oks oku oo- ooa ood oof ook ooo oor oos oot or- ora ord orf ork oro orr ors ort oru os- osa osd osf osk oso osr oss ost osu ot- ota otd otf otk oto otr ots ott otu ou- oua oud ouf ouk ouo our ous out ra- raa rad raf rak rao rar ras rat rau rda rdd rdf rdo rdr rds rdt rdu rfa rfd rff rfk rfo rfr rfs rft rfu rkf rkk rko rks rkt rku roa rod rof rok roo ror ros rot rou rra rrd rrf rrk rrr rrs rrt rru rsa rsd rsf rsk rso rsr rss rst rsu rta rtd rtf rtk rto rtr rts rtt rtu rua rud ruf ruk ruo rur rus rut ruu saa sad saf sak sao sar sas sat sau sda sdd sdf sdk sdo sdr sds sdt sdu sfa sfd sff sfk sfo sfr sfs sft sfu sk- ska skd skf skk sko skr sks skt sku soa sod sof sok soo sor sos sot sou sr- sra srd srf srk sro srr srs srt ss- ssa ssd ssf ssk sso ssr sss sst ssu sta std stf stk sto str sts stt stu sua sud suf suk suo sur sus sut suu taa tad taf tak tao tar tas tat tau tda tdd tdf tdk tdo tdr tds tdt tdu tfa tfd tff tfk tfo tfr tfs tft tfu tka tkk tko tkr tks tkt to- toa tod tof tok too tor tos tot tou tra trd trf trk tro trr trs trt tru tsa tsd tsf tsk tso tsr tss tst tsu tta ttd ttf ttk tto ttr tts ttt ttu tua tud tuf tuk tuo tur tus tut tuu ua- uaa uad uaf uak uao uar uas uat uau uda udd udf udk udo udr uds udt udu ufa ufd uff ufo ufr ufs uft ufu uka ukf ukk ukr uku uoa uod uok uoo uor uos uot ur- ura urd urf urk uro urr urs urt uru usa usd usf usk uso usr uss ust usu uta utd utf utk uto utr uts utt utu uua uur uus uut uuu