-er -ey a-a a-b aaa aab aad aae aan aao aap aar aay ab- aba abb abd abe abn abo abp abr aby ad- ada adb add ade adn ado adp adr ady aea aeb aed aee aen aeo aep aer aey an- ana anb and ane ann ano anp anr any aoa aob aod aoe aon aoo aop aor ap- apa apb apd ape apn apo app apr apy ar- ara arb ard are arn aro arp arr ary ay- aya ayd aye ayn ayo ayp ayr b-p baa bab bad bae ban bao bap bar bay bba bbb bbd bbe bbn bbo bbp bbr bby bda bdb bdd bde bdo bdp bdr bdy be- bea beb bed bee ben beo bep ber bey bna bnb bnd bne bnn bno bnp bnr boa bob bod boe bon boo bop bor boy bpa bpb bpd bpe bpn bpo bpp bpr bpy bra brb brd bre brn bro brp brr bry by- bya byd bye byn byo byp byr daa dab dad dae dan dao dap dar day dba dbb dbd dbe dbn dbo dbp dbr dby dda ddb ddd dde ddn ddo ddp ddr ddy de- dea deb ded dee den deo dep der dey dna dnb dnd dne dnn dno dnp dnr dny doa dob dod doe don doo dop dor doy dpa dpb dpd dpe dpn dpo dpp dpr dra drb drd dre drn dro drp drr dry dy- dya dyb dyd dye dyn dyo dyp dyr dyy eaa eab ead eae ean eao eap ear eba ebb ebd ebe ebn ebo ebp ebr eby ed- eda edb edd ede edn edo edp edr edy eea eeb eed eee een eeo eep eer eey en- ena enb end ene enn eno enp enr eny eo- eoa eob eod eoe eon eoo eop eor ep- epa epb epd epe epn epo epp epr era erb erd ere ern ero erp err ery eya eyd eye eyn eyo eyp eyr naa nab nad nae nan nao nap nar nay nba nbb nbd nbe nbn nbo nbp nbr nda ndb ndd nde ndn ndo ndp ndr ndy ne- nea neb ned nee nen neo nep ner ney nna nnb nne nnn nno nnp no- noa nob nod noe non noo nop nor noy npa npb npd npe npn npo npp npr nra nrb nrd nre nrn nro nrp nrr nry nya nyd nye nyn nyo nyp nyy oaa oab oad oae oan oao oap oar ob- oba obb obd obe obn obo obp obr oby oda odb odd ode odn odo odp odr oea oeb oed oee oen oeo oep oer oey on- ona onb ond one onn ono onp onr ony oo- ooa oob ood oon ooo oop oor op- opa opb opd ope opn opo opp opr opy or- ora orb ord ore orn oro orp orr ory oya oyd oye oyo p-p paa pab pad pae pan pao pap par pay pba pbb pbd pbe pbn pbo pbp pbr pby pda pdb pdd pde pdn pdo pdp pdr pea peb ped pee pen peo pep per pey pn- pna pnb pnd pne pnn pno pnp pnr pny poa pob pod poe pon poo pop por poy ppa ppb ppd ppe ppn ppo ppp ppr pra prb prd pre prn pro prp prr pry py- pya pyb pyd pye pyn pyo pyr ra- raa rab rad rae ran rao rap rar ray rba rbb rbd rbe rbn rbo rbp rbr rda rdb rdd rde rdn rdo rdp rdr rdy re- rea reb red ree ren reo rep rer rey rna rnb rnd rnn rno rnp rnr rny roa rob rod roe ron roo rop ror roy rpa rpb rpd rpe rpn rpo rpp rpr rra rrb rrd rrn rrp rrr ry- rya ryd rye ryn ryo ryr ryy yaa yab yad yae yan yao yap yar yay ybe ybp ybr yby yda yde ydn ydo ydy yea yeb yed yee yen yeo yep yer yey yna ynd yne ynn ynp yny yob yod yoe yon yoo yop yor yoy ypa ypd ypo yra yre yrn yro yrp yyb yye yyy