a-a a-b aaa aab aad aag aan aao aap aay ab- aba abb abd abg abn abo abp aby ad- ada adb add adg adn ado adp ady ag- aga agb agd agg agn ago agp agy an- ana anb and ang ann ano anp any aoa aob aod aog aon aoo aop ap- apa apb apd apg apn apo app apy ay- aya ayd ayn ayo ayp b-p baa bab bad bag ban bao bap bay bba bbb bbd bbg bbn bbo bbp bby bda bdb bdd bdg bdo bdp bdy bga bgb bgd bgg bgn bgo bgp bna bnb bnd bng bnn bno bnp boa bob bod bog bon boo bop boy bpa bpb bpd bpg bpn bpo bpp bpy by- bya byd byg byn byo byp daa dab dad dag dan dao dap day dba dbb dbd dbg dbn dbo dbp dby dda ddb ddd ddg ddn ddo ddp ddy dga dgd dgg dgn dgp dna dnb dnd dng dnn dno dnp dny doa dob dod dog don doo dop doy dpa dpb dpd dpg dpn dpo dpp dy- dya dyb dyd dyn dyo dyp dyy g-d g-p gaa gab gad gag gan gao gap gay gba gbd gbg gbn gbo gbp gby gda gdb gdd gdn gdo gdp gga ggb ggd ggg ggn ggo ggp gna gnb gnd gnn gno gnp goa gob god gog gon goo gop goy gpa gpb gpd gpg gpn gpo gpp gy- gya gyb gyd gyn gyo gyp naa nab nad nag nan nao nap nay nba nbb nbd nbg nbn nbo nbp nda ndb ndd ndg ndn ndo ndp ndy nga ngb ngd ngg ngn ngo ngp nna nnb nng nnn nno nnp no- noa nob nod nog non noo nop noy npa npb npd npg npn npo npp nya nyd nyg nyn nyo nyp nyy oaa oab oad oag oan oao oap ob- oba obb obd obg obn obo obp oby oda odb odd odg odn odo odp oga ogd ogg ogn ogo ogp ogy on- ona onb ond ong onn ono onp ony oo- ooa oob ood oog oon ooo oop op- opa opb opd opg opn opo opp opy oya oyd oyo p-p paa pab pad pag pan pao pap pay pba pbb pbd pbg pbn pbo pbp pby pda pdb pdd pdg pdn pdo pdp pga pgb pgd pgg pgn pgo pgp pgy pn- pna pnb pnd png pnn pno pnp pny poa pob pod pog pon poo pop poy ppa ppb ppd ppg ppn ppo ppp py- pya pyb pyd pyg pyn pyo yaa yab yad yag yan yao yap yay ybg ybp yby yda ydg ydn ydo ydy yga ygo yna ynd yng ynn ynp yny yob yod yog yon yoo yop yoy ypa ypd ypg ypo yyb yyg yyy