a-a a-b a-i aaa aab aad aag aai aao aar aay ab- aba abb abd abg abi abo abr aby ad- ada adb add adg adi ado adr ady ag- aga agb agd agg agi ago agr agy ai- aia aib aid aig aii aio air aiy aoa aob aod aog aoi aoo aor ar- ara arb ard arg ari aro arr ary ay- aya ayd ayi ayo ayr baa bab bad bag bai bao bar bay bba bbb bbd bbg bbi bbo bbr bby bda bdb bdd bdg bdi bdo bdr bdy bga bgb bgd bgg bgi bgo bgr bi- bia bib bid big bii bio bir biy boa bob bod bog boi boo bor boy bra brb brd brg bri bro brr bry by- bya byd byg byi byo byr daa dab dad dag dai dao dar day dba dbb dbd dbg dbi dbo dbr dby dda ddb ddd ddg ddi ddo ddr ddy dga dgd dgg dgi dgr di- dia dib did dig dii dio dir diy doa dob dod dog doi doo dor doy dra drb drd drg dri dro drr dry dy- dya dyb dyd dyo dyr dyy g-d gaa gab gad gag gai gao gar gay gba gbd gbg gbi gbo gbr gby gda gdb gdd gdi gdo gdr gga ggb ggd ggg ggi ggo ggr gia gib gid gig gii gio gir giy goa gob god gog goi goo gor goy gra grb grd grg gri gro grr gry gy- gya gyb gyd gyo gyr i-d ia- iaa iab iad iag iai iao iar iba ibb ibd ibg ibi ibo ibr iby ida idb idd idg idi ido idr idy iga igb igd igg igi igo igr igy iia iib iid iii iio iir io- ioa iob iod iog ioi ioo ior ir- ira irb ird irg iri iro irr iry iya iyo iyr iyy o-i oaa oab oad oag oai oao oar ob- oba obb obd obg obi obo obr oby oda odb odd odg odi odo odr oga ogd ogg ogi ogo ogy oia oib oid oii oio oir oo- ooa oob ood oog ooi ooo oor or- ora orb ord org ori oro orr ory oya oyd oyi oyo ra- raa rab rad rag rai rao rar ray rba rbb rbd rbg rbi rbo rbr rda rdb rdd rdg rdi rdo rdr rdy rga rgb rgd rgg rgi rgo rgr ria rib rid rig rii rio rir riy roa rob rod rog roi roo ror roy rra rrb rrd rrg rri rrr ry- rya ryd ryg ryo ryr ryy yaa yab yad yag yai yao yar yay ybg ybi ybr yby yda ydg ydo ydy yga ygo yid yig yii yio yir yob yod yog yoi yoo yor yoy yra yrg yro yyb yyg yyy