a-a aaa aad aam aao aap ad- ada add adm ado adp ama amd amm amo amp aoa aod aom aoo aop ap- apa apd apm apo app daa dad dam dao dap dda ddd ddm ddo ddp dma dmd dmm dmo dmp doa dod dom doo dop dpa dpd dpm dpo dpp m-o maa mad mam mao map mda mdd mdm mdo mdp mma mmd mmm mmo mmp moa mod mom moo mop mpa mpd mpm mpo mpp oaa oad oam oao oap oda odd odm odo odp om- oma omd omm omo omp oo- ooa ood oom ooo oop op- opa opd opm opo opp p-p paa pad pam pao pap pda pdd pdm pdo pdp pma pmd pmm pmo pmp poa pod pom poo pop ppa ppd ppm ppo ppp