-al -ol a-a a-b a-i a-t aaa aab aae aai aak aal aao aat ab- aba abb abe abi abk abl abo abt aea aeb aee aei aek ael aeo aet ai- aia aib aie aii aik ail aio ait aka akb ake aki akk akl ako al- ala alb ale ali alk all alo alt aoa aob aoe aoi aok aol aoo aot at- ata atb ate ati atl ato att baa bab bae bai bak bal bao bat bba bbb bbe bbi bbk bbl bbo bbt be- bea beb bee bei bek bel beo bet bi- bia bib bie bii bik bil bio bit bka bkb bke bkk bkl bko bkt bla blb ble bli blk bll blo blt boa bob boe boi bok bol boo bot bta btb bte bti btk btl bto btt eaa eab eae eai eak eal eao eat eba ebb ebe ebi ebk ebl ebo ebt eea eeb eee eek eel eeo eet eia eib eie eii eik eil eio eit eka ekb eke eki ekl eko ekt ela elb ele eli elk ell elo elt eo- eoa eob eoe eoi eok eol eoo eot eta etb ete eti etk etl eto ett ia- iaa iab iae iai ial iao iat iba ibb ibe ibi ibk ibl ibo ibt ie- iea iee iei iek iel iet iia iib iie iii iil iio iit ika ikb ike iki ikk ikl iko ikt il- ila ilb ile ili ilk ill ilo ilt io- ioa iob ioe ioi iol ioo iot ita itb ite iti itk itl ito itt k-t ka- kaa kab kae kai kak kal kao kat kba kbb kbe kbi kbk kbl kbo ke- kea keb kee kei kek kel keo ket kia kib kie kii kik kil kio kit kkb kke kki kkk kkl kkt kl- kla klb kli klo klt koa kob koe koi kok kol koo kot kta ktb kte ktk ktl kto ktt la- laa lab lae lai lak lal lao lat lba lbb lbe lbi lbk lbl lbo lbt lea leb lee lei lek lel leo let lia lib lie lii lik lil lio lit lka lkb lkl lkt lla llb lle lli llk lll llo llt loa lob loe loi lok lol loo lot lta ltb lte lti ltk ltl lto ltt o-i oaa oab oae oai oak oal oao oat ob- oba obb obe obi obk obl obo obt oea oeb oee oei oel oeo oet oia oib oie oii oik oil oio oit oka okb oke oki okk okl oko ola olb ole oli olk oll olo olt oo- ooa oob ooi ook ool ooo oot ot- ota otb ote oti otk otl oto ott taa tab tae tai tak tal tao tat tba tbb tbe tbi tbk tbl tbo tbt te- tea teb tee tei tek tel teo tet tia tib tie tii tik til tio tit tka tkb tke tkk tkl tko tkt tla tle tli tlk tll tlo tlt to- toa tob toe toi tok tol too tot tta ttb tte tti ttk ttl tto ttt