a-a a-c aaa aac aam aan aao aap aas ac- aca acc acm acn aco acp acs ama amc amm amn amo amp ams an- ana anc anm ann ano anp ans aoa aoc aom aon aoo aop aos ap- apa apc apm apn apo app aps as- asa asc asm asn aso asp ass c-- caa cac cam can cao cap cas cca ccc ccm ccn cco ccp ccs cma cmc cmm cmn cmo cmp cms cn- cna cnc cnm cnn cno cnp cns co- coa coc com con coo cop cos cpa cpc cpm cpn cpo cpp cps csa csc csm csn cso csp css m-o maa mac mam man mao map mas mc- mca mcc mcm mcn mco mcp mcs mma mmc mmm mmn mmo mmp mms mna mnc mnm mnn mno mnp mns moa moc mom mon moo mop mos mpa mpc mpm mpn mpo mpp mps msa msc msm msn mso msp mss naa nac nam nan nao nap nas nca ncc ncm ncn nco ncp ncs nma nmc nmm nmn nmo nmp nms nna nnc nnm nnn nno nnp nns no- noa noc nom non noo nop nos npa npc npm npn npo npp nps nsa nsc nsm nsn nso nsp nss oaa oac oam oan oao oap oas oc- oca occ ocm ocn oco ocp ocs om- oma omc omm omn omo omp oms on- ona onc onn ono onp ons oo- ooa ooc oom oon ooo oop oos op- opa opc opm opn opo opp ops os- osa osc osm osn oso osp oss p-p paa pac pam pan pao pap pas pca pcc pcm pcn pco pcp pcs pma pmc pmm pmn pmo pmp pms pn- pna pnc pnm pnn pno pnp pns poa poc pom pon poo pop pos ppa ppc ppm ppn ppo ppp pps ps- psa psc psm psn pso psp pss saa sac sam san sao sap sas sca scc scm scn sco scp scs sma smc smm smn smo smp sms sna snc snm snn sno snp sns soa soc som son soo sop sos spa spc spm spn spo spp sps ss- ssa ssc ssm ssn sso ssp sss