a-a a-b aaa aab aad aam aao aar aay ab- aba abb abd abm abo abr aby ad- ada adb add adm ado adr ady ama amb amd amm amo amr amy aoa aob aod aom aoo aor ar- ara arb ard arm aro arr ary ay- aya ayd ayo ayr baa bab bad bam bao bar bay bba bbb bbd bbm bbo bbr bby bda bdb bdd bdm bdo bdr bdy bma bmb bmd bmm bmo bmr boa bob bod bom boo bor boy bra brb brd brm bro brr bry by- bya byd bym byo byr daa dab dad dam dao dar day dba dbb dbd dbm dbo dbr dby dda ddb ddd ddm ddo ddr ddy dma dmb dmd dmm dmo dmr doa dob dod dom doo dor doy dra drb drd drm dro drr dry dy- dya dyb dyd dym dyo dyr dyy m-o m-r maa mab mad mam mao mar may mba mbb mbd mbm mbo mbr mda mdb mdd mdm mdo mdr mdy mma mmb mmd mmm mmo mmr moa mob mod mom moo mor moy mra mrb mrd mrm mro mrr mry my- mya myb myd mym myo myr oaa oab oad oam oao oar ob- oba obb obd obm obo obr oby oda odb odd odm odo odr om- oma omb omd omm omo omr omy oo- ooa oob ood oom ooo oor or- ora orb ord orm oro orr ory oya oyd oyo ra- raa rab rad ram rao rar ray rba rbb rbd rbm rbo rbr rda rdb rdd rdm rdo rdr rdy rma rmb rmd rmm rmo rmr roa rob rod rom roo ror roy rra rrb rrd rrm rrr ry- rya ryd rym ryo ryr ryy yaa yab yad yam yao yar yay ybm ybr yby yda ydo ydy yma ymm ymo yob yod yom yoo yor yoy yra yro yyb yyy