a-a a-c a-t aaa aac aam aan aao aap aas aat ac- aca acc acm acn aco acp acs act ama amc amm amn amo amp ams amt an- ana anc anm ann ano anp ans ant aoa aoc aom aon aoo aop aos aot ap- apa apc apm apn apo app aps apt as- asa asc asm asn aso asp ass ast at- ata atc atm atn ato atp ats att c-- caa cac cam can cao cap cas cat cca ccc ccm ccn cco ccp ccs cct cma cmc cmm cmn cmo cmp cms cmt cn- cna cnc cnm cnn cno cnp cns cnt co- coa coc com con coo cop cos cot cpa cpc cpm cpn cpo cpp cps cpt csa csc csm csn cso csp css cst cta ctc ctm ctn cto ctp cts ctt m-o maa mac mam man mao map mas mat mc- mca mcc mcm mcn mco mcp mcs mct mma mmc mmm mmn mmo mmp mms mmt mna mnc mnm mnn mno mnp mns mnt moa moc mom mon moo mop mos mot mpa mpc mpm mpn mpo mpp mps mpt msa msc msm msn mso msp mss mst mta mtc mtm mtn mto mtp mts mtt naa nac nam nan nao nap nas nat nca ncc ncm ncn nco ncp ncs nct nma nmc nmm nmn nmo nmp nms nmt nna nnc nnm nnn nno nnp nns nnt no- noa noc nom non noo nop nos not npa npc npm npn npo npp nps npt nsa nsc nsm nsn nso nsp nss nst nta ntc ntm ntn nto ntp nts ntt oaa oac oam oan oao oap oas oat oc- oca occ ocm ocn oco ocp ocs oct om- oma omc omm omn omo omp oms omt on- ona onc onn ono onp ons ont oo- ooa ooc oom oon ooo oop oos oot op- opa opc opm opn opo opp ops opt os- osa osc osm osn oso osp oss ost ot- ota otc otm otn oto otp ots ott p-p paa pac pam pan pao pap pas pat pca pcc pcm pcn pco pcp pcs pct pma pmc pmm pmn pmo pmp pms pmt pn- pna pnc pnm pnn pno pnp pns pnt poa poc pom pon poo pop pos pot ppa ppc ppm ppn ppo ppp pps ppt ps- psa psc psm psn pso psp pss pst pt- pta ptc ptm ptn pto ptp pts ptt saa sac sam san sao sap sas sat sca scc scm scn sco scp scs sct sma smc smm smn smo smp sms smt sna snc snm snn sno snp sns snt soa soc som son soo sop sos sot spa spc spm spn spo spp sps spt ss- ssa ssc ssm ssn sso ssp sss sst sta stc stm stn sto stp sts stt taa tac tam tan tao tap tas tat tca tcc tcm tcn tco tcp tcs tct tma tmc tmm tmn tmo tmp tms tmt tna tnc tnm tnn tno tnp tns tnt to- toa toc tom ton too top tos tot tpa tpc tpm tpn tpo tpp tps tpt tsa tsc tsm tsn tso tsp tss tst tta ttc ttm ttn tto ttp tts ttt