-al -ol a-a a-b a-c aaa aab aac aad aag aak aal aao ab- aba abb abc abd abg abk abl abo ac- aca acb acc acd acg ack acl aco ad- ada adb adc add adg adk adl ado ag- aga agb agc agd agg agk agl ago aka akb akc akd akg akk akl ako al- ala alb alc ald alg alk all alo aoa aob aoc aod aog aok aol aoo baa bab bac bad bag bak bal bao bba bbb bbc bbd bbg bbk bbl bbo bca bcb bcc bcd bcg bck bcl bco bda bdb bdc bdd bdg bdk bdl bdo bga bgb bgc bgd bgg bgk bgl bgo bka bkb bkc bkg bkk bkl bko bla blb blc bld blg blk bll blo boa bob boc bod bog bok bol boo c-- caa cab cac cad cag cak cal cao cba cbb cbc cbd cbg cbk cbl cbo cca ccb ccc ccd ccg cck ccl cco cda cdb cdc cdd cdg cdk cdl cdo cga cgb cgc cgd cgg cgl cgo cka ckb ckc ckd cko cl- cla clb clc cld clg clk cll clo co- coa cob coc cod cog cok col coo daa dab dac dad dag dak dal dao dba dbb dbc dbd dbg dbk dbl dbo dca dcb dcc dcd dcg dck dcl dco dda ddb ddc ddd ddg ddk ddl ddo dga dgc dgd dgg dgk dgl dka dkb dkc dkg dkk dkl dko dl- dla dlb dlc dld dlg dlk dll dlo doa dob doc dod dog dok dol doo g-d gaa gab gac gad gag gak gal gao gba gbc gbd gbg gbk gbl gbo gca gcb gcc gcd gcg gck gcl gco gda gdb gdc gdd gdk gdl gdo gga ggb ggc ggd ggg ggo gka gkb gkd gko gla glb glc gld glg glk gll glo goa gob goc god gog gok gol goo ka- kaa kab kac kad kag kak kal kao kba kbb kbc kbd kbk kbl kbo kca kcb kcc kcd kcg kck kcl kda kdb kdc kdg kdk kdl kdo kga kgb kgc kgd kgl kgo kkb kkc kkk kkl kl- kla klb klc kld klg klo koa kob koc kod kog kok kol koo la- laa lab lac lad lag lak lal lao lba lbb lbc lbd lbg lbk lbl lbo lca lcb lcc lcd lcg lck lcl lco lda ldb ldc ldd ldg ldk ldl ldo lga lgb lgc lgd lgg lgk lgl lgo lka lkb lkg lkl lla llb llc lld llg llk lll llo loa lob loc lod log lok lol loo oaa oab oac oad oag oak oal oao ob- oba obb obc obd obg obk obl obo oc- oca ocb occ ocd ocg ock ocl oco oda odb odc odd odg odl odo oga ogc ogd ogg ogl ogo oka okb okc okd okg okk okl oko ola olb olc old olg olk oll olo oo- ooa oob ooc ood oog ook ool ooo