-al -ol a-a a-b aaa aab aae aaf aak aal aam aao ab- aba abb abe abf abk abl abm abo aea aeb aee aef aek ael aem aeo af- afa afb afe aff afk afl afm afo aka akb ake akk akl akm ako al- ala alb ale alf alk all alm alo ama amb ame amf amk aml amm amo aoa aob aoe aof aok aol aom aoo baa bab bae baf bak bal bam bao bba bbb bbe bbf bbk bbl bbm bbo be- bea beb bee bef bek bel bem beo bfa bfb bfe bff bfl bfm bfo bka bkb bke bkf bkk bkl bkm bko bla blb ble blf blk bll blm blo bma bmb bme bmf bmk bml bmm bmo boa bob boe bof bok bol bom boo eaa eab eae eaf eak eal eam eao eba ebb ebe ebf ebk ebl ebm ebo eea eeb eee eef eek eel eem eeo ef- efa efb efe eff efl efm efo eka ekb eke ekf ekl eko ela elb ele elf elk ell elm elo em- ema emb eme emf emk eml emm emo eo- eoa eob eoe eof eok eol eom eoo faa fab fae faf fak fal fam fao fba fbb fbe fbf fbk fbl fbm fbo fea feb fee fef fek fel fem feo ffa ffe fff ffk ffl ffm ffo fka fkb fkf fkk fkl fkm fla flb fle flf fll flm flo fma fmb fme fmf fml fmm fmo foa fob foe fof fok fol fom foo ka- kaa kab kae kaf kak kal kam kao kba kbb kbe kbf kbk kbl kbm kbo ke- kea keb kee kef kek kel kem keo kfa kff kfm kfo kkb kke kkk kkl kkm kl- kla klb klf klm klo kma kmb kme kmf kmk kml kmm kmo koa kob koe kof kok kol kom koo la- laa lab lae laf lak lal lam lao lba lbb lbe lbf lbk lbl lbm lbo lea leb lee lef lek lel lem leo lfa lfb lfe lff lfk lfl lfm lfo lka lkb lkl lla llb lle llf llk lll llm llo lma lmb lme lmf lmk lml lmm lmo loa lob loe lof lok lol lom loo m-f m-o maa mab mae maf mak mal mam mao mba mbb mbe mbf mbk mbl mbm mbo mea meb mee mef mek mel mem meo mfa mfb mfe mff mfl mfm mfo mka mkb mke mkk mkl mkm mko mla mlb mle mlf mlk mll mlm mlo mma mmb mme mmf mmk mml mmm mmo moa mob moe mof mok mol mom moo oaa oab oae oaf oak oal oam oao ob- oba obb obe obf obk obl obm obo oea oeb oee oef oel oem oeo of- ofa ofb ofe off ofl ofm ofo oka okb oke okk okl oko ola olb ole olf olk oll olm olo om- oma omb ome omf oml omm omo oo- ooa oob oof ook ool oom ooo