a-a aaa aam aan aao aap aar ama amm amn amo amp amr an- ana anm ann ano anp anr aoa aom aon aoo aop aor ap- apa apm apn apo app apr ar- ara arm arn aro arp arr m-o m-r maa mam man mao map mar mma mmm mmn mmo mmp mmr mna mnm mnn mno mnp mnr moa mom mon moo mop mor mpa mpm mpn mpo mpp mpr mra mrm mrn mro mrp mrr naa nam nan nao nap nar nma nmm nmn nmo nmp nmr nna nnm nnn nno nnp no- noa nom non noo nop nor npa npm npn npo npp npr nra nrm nrn nro nrp nrr oaa oam oan oao oap oar om- oma omm omn omo omp omr on- ona onn ono onp onr oo- ooa oom oon ooo oop oor op- opa opm opn opo opp opr or- ora orm orn oro orp orr p-p paa pam pan pao pap par pma pmm pmn pmo pmp pmr pn- pna pnm pnn pno pnp pnr poa pom pon poo pop por ppa ppm ppn ppo ppp ppr pra prm prn pro prp prr ra- raa ram ran rao rap rar rma rmm rmn rmo rmp rmr rna rnm rnn rno rnp rnr roa rom ron roo rop ror rpa rpm rpn rpo rpp rpr rra rrm rrn rrp rrr