a-a a-b aaa aab aad aam aao aap aay ab- aba abb abd abm abo abp aby ad- ada adb add adm ado adp ady ama amb amd amm amo amp amy aoa aob aod aom aoo aop ap- apa apb apd apm apo app apy ay- aya ayd ayo ayp b-p baa bab bad bam bao bap bay bba bbb bbd bbm bbo bbp bby bda bdb bdd bdm bdo bdp bdy bma bmb bmd bmm bmo bmp boa bob bod bom boo bop boy bpa bpb bpd bpm bpo bpp bpy by- bya byd bym byo byp daa dab dad dam dao dap day dba dbb dbd dbm dbo dbp dby dda ddb ddd ddm ddo ddp ddy dma dmb dmd dmm dmo dmp doa dob dod dom doo dop doy dpa dpb dpd dpm dpo dpp dy- dya dyb dyd dym dyo dyp dyy m-o maa mab mad mam mao map may mba mbb mbd mbm mbo mbp mda mdb mdd mdm mdo mdp mdy mma mmb mmd mmm mmo mmp moa mob mod mom moo mop moy mpa mpb mpd mpm mpo mpp my- mya myb myd mym myo oaa oab oad oam oao oap ob- oba obb obd obm obo obp oby oda odb odd odm odo odp om- oma omb omd omm omo omp omy oo- ooa oob ood oom ooo oop op- opa opb opd opm opo opp opy oya oyd oyo p-p paa pab pad pam pao pap pay pba pbb pbd pbm pbo pbp pby pda pdb pdd pdm pdo pdp pma pmb pmd pmm pmo pmp poa pob pod pom poo pop poy ppa ppb ppd ppm ppo ppp py- pya pyb pyd pym pyo yaa yab yad yam yao yap yay ybm ybp yby yda ydo ydy yma ymm ymo yob yod yom yoo yop yoy ypa ypd ypo yyb yyy