-er a-a a-b aaa aab aad aae aar aas aau aav ab- aba abb abd abe abr abs abu abv ad- ada adb add ade adr ads adu adv aea aeb aed aee aer aes aeu aev ar- ara arb ard are arr ars aru arv as- asa asb asd ase asr ass asu asv au- aua aub aud aue aur aus auv av- ava avb avd ave avr avs avu b-u baa bab bad bae bar bas bau bav bba bbb bbd bbe bbr bbs bbu bda bdb bdd bde bdr bds bdu bdv be- bea beb bed bee ber bes beu bev bra brb brd bre brr brs bru brv bsa bsb bsd bse bsr bss bsu bsv bua bub bud bue bur bus buu bva bvb bvd bve bvr bvs bvu bvv daa dab dad dae dar das dau dav dba dbb dbd dbe dbr dbs dbu dbv dda ddb ddd dde ddr dds ddu de- dea deb ded dee der des deu dev dra drb drd dre drr drs dru drv dsa dsb dsd dse dsr dss dsu dsv dua dub dud due dur dus duv dva dvb dvd dve dvr dvs dvu eaa eab ead eae ear eas eau eav eba ebb ebd ebe ebr ebs ebu ebv ed- eda edb edd ede edr eds edu eea eeb eed eee eer ees eev era erb erd ere err ers eru erv es- esa esb esd ese esr ess esu esv eu- eua eub eud eue eur eus euv eva evb evd eve evr evs evv ra- raa rab rad rae rar ras rau rav rba rbb rbd rbe rbr rbs rbu rda rdb rdd rde rdr rds rdu rdv re- rea reb red ree rer res reu rev rra rrb rrd rrr rrs rru rsa rsb rsd rse rsr rss rsu rsv rua rub rud rue rur rus ruu ruv rva rvb rvd rve rvr rvs rvu rvv saa sab sad sae sar sas sau sav sba sbb sbd sbe sbr sbs sbu sbv sda sdb sdd sde sdr sds sdu sdv se- sea seb sed see ser ses seu sev sr- sra srb srd sre srr srs srv ss- ssa ssb ssd sse ssr sss ssu ssv sua sub sud sue sur sus suu suv sva svb svd sve svr svs svu svv ua- uaa uab uad uae uar uas uau uav uba ubb ube ubr ubs ubu ubv uda udb udd ude udr uds udu udv uea ueb ued uee uer ues ur- ura urb urd ure urr urs uru usa usb usd use usr uss usu usv uua uue uur uus uuu uva uvb uve uvs uvu uvv v-a v-e vaa vab vad vae var vas vau vav vba vbd vbr vbs vbv vdb vdd vde vdr vds vdu vdv vea veb ved vee ver ves veu vra vrb vrd vre vrr vrs vru vsa vsb vsd vse vsr vss vsu vsv vue vur vus vuv vva vvb vvr vvs vvv

-ase a-be aaaa aaab aaad aaae aaar aaas aaav aaba aabb aabd aada aade aads aadu aaea aaes aaev aara aard aare aars aaru aasa aasd aase aass aasu aaus aava abaa abab abad abae abar abas abau abb- abba abbb abbe abbr abbs abda abdu abed abee aber abes abra abrs abs- absa absd abse abss absu abua abud abue abus abva abvd adaa adab adad adae adar adas adba adda addd adde addr adds addu adea adeb adee ader ades adra adre adrs adsa adsr adss adua adub adue adur advb advs aeas aebs aede aeer aer- aera aerd aers aesd aess aeva arab arad arae arar aras arau arba arbe arbs arda arde ards ardu area ared aree ares areu arev arr- arra arre arrr arrs arru ars- arsa arsd arse arsu arua arub arud arue arva arve asaa asab asad asae asar asas asau asba asbu asda asde asds asea asee aser ases asra asrs asru assa assd asse assr asss assu asub asud asue asur asus asva asvd asvs auaa aube aude auer aur- aura aurd aure ausa ausd ause ausu auve auvs avab avar avas avda avea aver aves aveu avra avre avur avus avva baaa baad baar baas baba babb babe babr babs babu bada badb badd bade badr bads badu baed baer baes bar- bara barb bard bare barr bars baru basa base bass basu bau- baud baur bava bave bavu bbad bbas bbau bbbb bbbs bbdd bbeb bd-r bdav bdes bdsd bead bear beas beau beav beba bebb bebe beda bede beds bedu beeb beed beer bees bera berd bere berr bers beru bes- besa bese bess beur bevs brab brad brae bras brau brav brda brds brea breb bred bree brer bres brev brrr brrs brsb brsr brud brue brus bruv bsaa bsas bsbd bsea bseb bsed bsee bser bses bsra bsrd bssd bsse buad buar buba bubb bube bubs bubu buda budb budd bude buds budu buea buer bueu bur- bura burb burd bure burr burs buru busa buse buss busu buus buvd buve bvds bvdu daab daad daae daar daas daau daba dabb dabs dabu dada dade dads dadu daeb daer daeu dara darb dard dare darr dars daru dasa dasb dasd dase dass daub daud daue daur daus dava dave dbar dbas dbrs dbsa dbss dbus dddd ddes ddre ddss ddub dead deae dear deas deau deba debe debs debu deda dedd dede dedu deeb deed deer dees deev der- dera derb dere derr ders derv des- desa dese dess desu deua deue deur deus deva deve devs draa drab drad drar dras drau drba drda drea dred dree dres drev drra drrs drsa drua drub drue drus druu druv dsba dsda dsdr dsea dsrr dssa dsvd duaa duab duad duar duas dub- duba dubb dube dubs dubu duda dudd dude duds dudu duer dues dura dure duru dusa duse duur duva duve dvar dvas dvbs dvda dvdr dvds dvra dvrs dvsr eaba eada eadb eadd eads eara