-al -ol a-a a-b a-t aaa aab aae aal aam aao aat ab- aba abb abe abl abm abo abt aea aeb aee ael aem aeo aet al- ala alb ale all alm alo alt ama amb ame aml amm amo amt aoa aob aoe aol aom aoo aot at- ata atb ate atl atm ato att baa bab bae bal bam bao bat bba bbb bbe bbl bbm bbo bbt be- bea beb bee bel bem beo bet bla blb ble bll blm blo blt bma bmb bme bml bmm bmo bmt boa bob boe bol bom boo bot bta btb bte btl btm bto btt eaa eab eae eal eam eao eat eba ebb ebe ebl ebm ebo ebt eea eeb eee eel eem eeo eet ela elb ele ell elm elo elt em- ema emb eme eml emm emo emt eo- eoa eob eoe eol eom eoo eot eta etb ete etl etm eto ett la- laa lab lae lal lam lao lat lba lbb lbe lbl lbm lbo lbt lea leb lee lel lem leo let lla llb lle lll llm llo llt lma lmb lme lml lmm lmo lmt loa lob loe lol lom loo lot lta ltb lte ltl ltm lto ltt m-o maa mab mae mal mam mao mat mba mbb mbe mbl mbm mbo mbt mea meb mee mel mem meo met mla mlb mle mll mlm mlo mlt mma mmb mme mml mmm mmo mmt moa mob moe mol mom moo mot mta mtb mte mtl mtm mto mtt oaa oab oae oal oam oao oat ob- oba obb obe obl obm obo obt oea oeb oee oel oem oeo oet ola olb ole oll olm olo olt om- oma omb ome oml omm omo omt oo- ooa oob ool oom ooo oot ot- ota otb ote otl otm oto ott taa tab tae tal tam tao tat tba tbb tbe tbl tbm tbo tbt te- tea teb tee tel tem teo tet tla tle tll tlm tlo tlt tma tmb tme tml tmm tmo tmt to- toa tob toe tol tom too tot tta ttb tte ttl ttm tto ttt