-al -ol a-a a-b a-i a-t aaa aab aae aai aal aao aat ab- aba abb abe abi abl abo abt aea aeb aee aei ael aeo aet ai- aia aib aie aii ail aio ait al- ala alb ale ali all alo alt aoa aob aoe aoi aol aoo aot at- ata atb ate ati atl ato att baa bab bae bai bal bao bat bba bbb bbe bbi bbl bbo bbt be- bea beb bee bei bel beo bet bi- bia bib bie bii bil bio bit bla blb ble bli bll blo blt boa bob boe boi bol boo bot bta btb bte bti btl bto btt eaa eab eae eai eal eao eat eba ebb ebe ebi ebl ebo ebt eea eeb eee eel eeo eet eia eib eie eii eil eio eit ela elb ele eli ell elo elt eo- eoa eob eoe eoi eol eoo eot eta etb ete eti etl eto ett ia- iaa iab iae iai ial iao iat iba ibb ibe ibi ibl ibo ibt ie- iea iee iei iel iet iia iib iie iii iil iio iit il- ila ilb ile ili ill ilo ilt io- ioa iob ioe ioi iol ioo iot ita itb ite iti itl ito itt la- laa lab lae lai lal lao lat lba lbb lbe lbi lbl lbo lbt lea leb lee lei lel leo let lia lib lie lii lil lio lit lla llb lle lli lll llo llt loa lob loe loi lol loo lot lta ltb lte lti ltl lto ltt o-i oaa oab oae oai oal oao oat ob- oba obb obe obi obl obo obt oea oeb oee oei oel oeo oet oia oib oie oii oil oio oit ola olb ole oli oll olo olt oo- ooa oob ooi ool ooo oot ot- ota otb ote oti otl oto ott taa tab tae tai tal tao tat tba tbb tbe tbi tbl tbo tbt te- tea teb tee tei tel teo tet tia tib tie tii til tio tit tla tle tli tll tlo tlt to- toa tob toe toi tol too tot tta ttb tte tti ttl tto ttt