-er a-a a-b aaa aab aad aae aag aak aan aao aar aau ab- aba abb abd abe abg abk abn abo abr abu ad- ada adb add ade adg adk adn ado adr adu aea aeb aed aee aeg aek aen aeo aer aeu ag- aga agb agd age agg agk agn ago agr agu aka akb akd ake akg akk akn ako akr aku an- ana anb and ane ang ank ann ano anr anu aoa aob aod aoe aog aok aon aoo aor aou ar- ara arb ard are arg ark arn aro arr aru au- aua aub aud aue aug auk aun auo aur b-u baa bab bad bae bag bak ban bao bar bau bba bbb bbd bbe bbg bbk bbn bbo bbr bbu bda bdb bdd bde bdg bdk bdo bdr bdu be- bea beb bed bee beg bek ben beo ber beu bga bgb bgd bge bgg bgk bgn bgo bgr bgu bka bkb bke bkg bkk bkn bko bkr bna bnb bnd bne bng bnk bnn bno bnr bnu boa bob bod boe bog bok bon boo bor bou bra brb brd bre brg brk brn bro brr bru bua bub bud bue bug buk bun buo bur buu daa dab dad dae dag dak dan dao dar dau dba dbb dbd dbe dbg dbk dbn dbo dbr dbu dda ddb ddd dde ddg ddk ddn ddo ddr ddu de- dea deb ded dee deg dek den deo der deu dga dgd dge dgg dgk dgn dgr dgu dka dkb dke dkg dkk dko dkr dku dna dnb dnd dne dng dnk dnn dno dnr doa dob dod doe dog dok don doo dor dou dra drb drd dre drg drk drn dro drr dru dua dub dud due dug duk dun duo dur eaa eab ead eae eag eak ean eao ear eau eba ebb ebd ebe ebg ebk ebn ebo ebr ebu ed- eda edb edd ede edg edk edn edo edr edu eea eeb eed eee eeg eek een eeo eer ega egb egd ege egg egn ego egr egu eka ekb ekd eke ekg eko ekr eku en- ena enb end ene eng enk enn eno enr enu eo- eoa eob eod eoe eog eok eon eoo eor eou era erb erd ere erg erk ern ero err eru eu- eua eub eud eue eug eun eur g-d gaa gab gad gae gag gak gan gao gar gau gba gbd gbe gbg gbk gbn gbo gbr gbu gda gdb gdd gde gdk gdn gdo gdr gdu ge- gea geb ged gee geg gek gen geo ger geu gga ggb ggd ggg ggn ggo ggr ggu gka gkb gkd gkn gko gna gnb gnd gne gnn gno gnr gnu goa gob god goe gog gok gon goo gor gou gra grb grd gre grg grk grn gro grr gru gu- gua gub gud gue gug guk gun guo gur guu ka- kaa kab kad kae kag kak kan kao kar kau kba kbb kbd kbe kbk kbn kbo kbr kbu kda kdb kde kdg kdk kdo kdr kdu ke- kea keb ked kee keg kek ken keo ker kga kgb kgd kgo kgu kkb kke kkk kkn kkr kku kn- kna knd kne kng knk knn kno knr knu koa kob kod koe kog kok kon koo kor kou kra krd krg krk krn kro krr kru kub kud kue kug kuk kun kur kuu naa nab nad nae nag nak nan nao nar nau nba nbb nbd nbe nbg nbk nbn nbo nbr nbu nda ndb ndd nde ndg ndk ndn ndo ndr ndu ne- nea neb ned nee neg nek nen neo ner neu nga ngb ngd nge ngg ngk ngn ngo ngu nka nke nkk nkn nko nkr nku nna nnb nne nng nnk nnn nno nnu no- noa nob nod noe nog nok non noo nor nou nra nrb nrd nre nrg nrk nrn nro nrr nru nua nub nud nue nug nuk nun nuo nur nuu oaa oab oad oae oag oak oan oao oar oau ob- oba obb obd obe obg obk obn obo obr obu oda odb odd ode odg odn odo odr odu oea oeb oed oee oeg oen oeo oer oga ogd oge ogg ogn ogo oka okb okd oke okg okk oko okr oku on- ona onb ond one ong onk onn ono onr onu oo- ooa oob ood oog ook oon ooo oor or- ora orb ord ore org ork orn oro orr oru ou- oua oud oue ouk oun ouo our ra- raa rab rad rae rag rak ran rao rar rau rba rbb rbd rbe rbg rbk rbn rbo rbr rbu rda rdb rdd rde rdg rdn rdo rdr rdu re- rea reb red ree reg rek ren reo rer reu rga rgb rgd rge rgg rgk rgn rgo rgr rkb rke rkg rkk rko rku rna rnb rnd rng rnn rno rnr rnu roa rob rod roe rog rok ron roo ror rou rra rrb rrd rrg rrk rrn rrr rru rua rub rud rue rug ruk run ruo rur ruu ua- uaa uab uad uae uag uak uan uao uar uau uba ubb ube ubg ubk ubn ubo ubr ubu uda udb udd ude udg udk udn udo udr udu uea ueb ued uee ueg uen uer uga ugb uge ugg ugk ugn ugo ugr ugu uka ukb uke ukk ukn ukr uku un- una unb und une ung unk unn uno unr unu uoa uob uod uoe uog uok uon uoo uor ur- ura urb urd ure urg urk urn uro urr uru uua uue uug uun uur uuu