a-a a-t aaa aam aao aap aat ama amm amo amp amt aoa aom aoo aop aot ap- apa apm apo app apt at- ata atm ato atp att m-o maa mam mao map mat mma mmm mmo mmp mmt moa mom moo mop mot mpa mpm mpo mpp mpt mta mtm mto mtp mtt oaa oam oao oap oat om- oma omm omo omp omt oo- ooa oom ooo oop oot op- opa opm opo opp opt ot- ota otm oto otp ott p-p paa pam pao pap pat pma pmm pmo pmp pmt poa pom poo pop pot ppa ppm ppo ppp ppt pt- pta ptm pto ptp ptt taa tam tao tap tat tma tmm tmo tmp tmt to- toa tom too top tot tpa tpm tpo tpp tpt tta ttm tto ttp ttt