-al -ol a-a a-b a-c aaa aab aac aad aak aal aam aao ab- aba abb abc abd abk abl abm abo ac- aca acb acc acd ack acl acm aco ad- ada adb adc add adk adl adm ado aka akb akc akd akk akl akm ako al- ala alb alc ald alk all alm alo ama amb amc amd amk aml amm amo aoa aob aoc aod aok aol aom aoo baa bab bac bad bak bal bam bao bba bbb bbc bbd bbk bbl bbm bbo bca bcb bcc bcd bck bcl bcm bco bda bdb bdc bdd bdk bdl bdm bdo bka bkb bkc bkk bkl bkm bko bla blb blc bld blk bll blm blo bma bmb bmc bmd bmk bml bmm bmo boa bob boc bod bok bol bom boo c-- caa cab cac cad cak cal cam cao cba cbb cbc cbd cbk cbl cbm cbo cca ccb ccc ccd cck ccl ccm cco cda cdb cdc cdd cdk cdl cdm cdo cka ckb ckc ckd ckm cko cl- cla clb clc cld clk cll clm clo cma cmb cmc cmd cmk cml cmm cmo co- coa cob coc cod cok col com coo daa dab dac dad dak dal dam dao dba dbb dbc dbd dbk dbl dbm dbo dca dcb dcc dcd dck dcl dcm dco dda ddb ddc ddd ddk ddl ddm ddo dka dkb dkc dkk dkl dkm dko dl- dla dlb dlc dld dlk dll dlm dlo dma dmb dmc dmd dmk dml dmm dmo doa dob doc dod dok dol dom doo ka- kaa kab kac kad kak kal kam kao kba kbb kbc kbd kbk kbl kbm kbo kca kcb kcc kcd kck kcl kcm kda kdb kdc kdk kdl kdm kdo kkb kkc kkk kkl kkm kl- kla klb klc kld klm klo kma kmb kmc kmd kmk kml kmm kmo koa kob koc kod kok kol kom koo la- laa lab lac lad lak lal lam lao lba lbb lbc lbd lbk lbl lbm lbo lca lcb lcc lcd lck lcl lcm lco lda ldb ldc ldd ldk ldl ldm ldo lka lkb lkl lla llb llc lld llk lll llm llo lma lmb lmc lmd lmk lml lmm lmo loa lob loc lod lok lol lom loo m-o maa mab mac mad mak mal mam mao mba mbb mbc mbd mbk mbl mbm mbo mc- mca mcb mcc mcd mck mcl mcm mco mda mdb mdc mdd mdk mdl mdm mdo mka mkb mkc mkd mkk mkl mkm mko mla mlb mlc mld mlk mll mlm mlo mma mmb mmc mmd mmk mml mmm mmo moa mob moc mod mok mol mom moo oaa oab oac oad oak oal oam oao ob- oba obb obc obd obk obl obm obo oc- oca ocb occ ocd ock ocl ocm oco oda odb odc odd odl odm odo oka okb okc okd okk okl oko ola olb olc old olk oll olm olo om- oma omb omc omd oml omm omo oo- ooa oob ooc ood ook ool oom ooo