-al -er -ol a-a a-b a-t aaa aab aae aal aao aar aat aau ab- aba abb abe abl abo abr abt abu aea aeb aee ael aeo aer aet aeu al- ala alb ale all alo alr alt alu aoa aob aoe aol aoo aor aot aou ar- ara arb are arl aro arr art aru at- ata atb ate atl ato atr att atu au- aua aub aue aul auo aur aut b-u baa bab bae bal bao bar bat bau bba bbb bbe bbl bbo bbr bbt bbu be- bea beb bee bel beo ber bet beu bla blb ble bll blo blr blt blu boa bob boe bol boo bor bot bou bra brb bre brl bro brr brt bru bta btb bte btl bto btr btt btu bua bub bue bul buo bur but buu eaa eab eae eal eao ear eat eau eba ebb ebe ebl ebo ebr ebt ebu eea eeb eee eel eeo eer eet ela elb ele ell elo elr elt elu eo- eoa eob eoe eol eoo eor eot eou era erb ere erl ero err ert eru eta etb ete etl eto etr ett etu eu- eua eub eue eul eur eut la- laa lab lae lal lao lar lat lau lba lbb lbe lbl lbo lbr lbt lbu lea leb lee lel leo ler let leu lla llb lle lll llo llr llt llu loa lob loe lol loo lor lot lou lra lrb lro lrr lrt lru lta ltb lte ltl lto ltr ltt ltu lua lub lue lul luo lur lut luu oaa oab oae oal oao oar oat oau ob- oba obb obe obl obo obr obt obu oea oeb oee oel oeo oer oet ola olb ole oll olo olt olu oo- ooa oob ool ooo oor oot or- ora orb ore orl oro orr ort oru ot- ota otb ote otl oto otr ott otu ou- oua oue oul ouo our out ra- raa rab rae ral rao rar rat rau rba rbb rbe rbl rbo rbr rbt rbu re- rea reb ree rel reo rer ret reu rla rle rll rlo rlr rlt rlu roa rob roe rol roo ror rot rou rra rrb rrl rrr rrt rru rta rtb rte rtl rto rtr rtt rtu rua rub rue ruo rur rut ruu taa tab tae tal tao tar tat tau tba tbb tbe tbl tbo tbr tbt tbu te- tea teb tee tel teo ter tet teu tla tle tll tlo tlr tlt tlu to- toa tob toe tol too tor tot tou tra trb tre trl tro trr trt tru tta ttb tte ttl tto ttr ttt ttu tua tub tue tul tuo tur tut tuu ua- uaa uab uae ual uao uar uat uau uba ubb ube ubl ubo ubr ubt ubu uea ueb uee uel uer uet ula ulb ule ull ulo ulr ult ulu uoa uob uoe uol uoo uor uot ur- ura urb ure url uro urr urt uru uta utb ute utl uto utr utt utu uua uue uur uut uuu