a-a a-c aaa aac aam aao aap aas aay ac- aca acc acm aco acp acs acy ama amc amm amo amp ams amy aoa aoc aom aoo aop aos ap- apa apc apm apo app aps apy as- asa asc asm aso asp ass asy ay- aya ayc ayo ayp ays c-- caa cac cam cao cap cas cay cca ccc ccm cco ccp ccs cma cmc cmm cmo cmp cms cmy co- coa coc com coo cop cos coy cpa cpc cpm cpo cpp cps csa csc csm cso csp css csy cya cyc cym cyo cyp cys m-o maa mac mam mao map mas may mc- mca mcc mcm mco mcp mcs mma mmc mmm mmo mmp mms moa moc mom moo mop mos moy mpa mpc mpm mpo mpp mps msa msc msm mso msp mss msy my- mya myc mym myo mys oaa oac oam oao oap oas oc- oca occ ocm oco ocp ocs om- oma omc omm omo omp oms omy oo- ooa ooc oom ooo oop oos op- opa opc opm opo opp ops opy os- osa osc osm oso osp oss oya oyo oys p-p paa pac pam pao pap pas pay pca pcc pcm pco pcp pcs pma pmc pmm pmo pmp pms poa poc pom poo pop pos poy ppa ppc ppm ppo ppp pps ps- psa psc psm pso psp pss psy py- pya pyc pym pyo pys saa sac sam sao sap sas say sca scc scm sco scp scs sma smc smm smo smp sms smy soa soc som soo sop sos soy spa spc spm spo spp sps spy ss- ssa ssc ssm sso ssp sss sy- sya syc sym syp sys yaa yac yam yao yap yas yay yca ycc yco ycp ycs ycy yma ymc ymm ymo yms yoc yom yoo yop yos yoy ypa ypo yps ysa ysc ysm yso ysp yss ysy yyc yys yyy