-al -ol a-a a-b aaa aab aae aag aak aal aao ab- aba abb abe abg abk abl abo aea aeb aee aeg aek ael aeo ag- aga agb age agg agk agl ago aka akb ake akg akk akl ako al- ala alb ale alg alk all alo aoa aob aoe aog aok aol aoo baa bab bae bag bak bal bao bba bbb bbe bbg bbk bbl bbo be- bea beb bee beg bek bel beo bga bgb bge bgg bgk bgl bgo bka bkb bke bkg bkk bkl bko bla blb ble blg blk bll blo boa bob boe bog bok bol boo eaa eab eae eag eak eal eao eba ebb ebe ebg ebk ebl ebo eea eeb eee eeg eek eel eeo ega egb ege egg egl ego eka ekb eke ekg ekl eko ela elb ele elg elk ell elo eo- eoa eob eoe eog eok eol eoo gaa gab gae gag gak gal gao gba gbe gbg gbk gbl gbo ge- gea geb gee geg gek gel geo gga ggb ggg ggo gka gkb gko gla glb gle glg glk gll glo goa gob goe gog gok gol goo ka- kaa kab kae kag kak kal kao kba kbb kbe kbk kbl kbo ke- kea keb kee keg kek kel keo kga kgb kgl kgo kkb kke kkk kkl kl- kla klb klg klo koa kob koe kog kok kol koo la- laa lab lae lag lak lal lao lba lbb lbe lbg lbk lbl lbo lea leb lee leg lek lel leo lga lgb lge lgg lgk lgl lgo lka lkb lkg lkl lla llb lle llg llk lll llo loa lob loe log lok lol loo oaa oab oae oag oak oal oao ob- oba obb obe obg obk obl obo oea oeb oee oeg oel oeo oga oge ogg ogl ogo oka okb oke okg okk okl oko ola olb ole olg olk oll olo oo- ooa oob oog ook ool ooo