-al -er -ol a-a a-b a-c a-t aaa aab aac aad aae aal aao aar aat aau ab- aba abb abc abd abe abl abo abr abt abu ac- aca acb acc acd ace acl aco acr act acu ad- ada adb adc add ade adl ado adr adt adu aea aeb aec aed aee ael aeo aer aet aeu al- ala alb alc ald ale all alo alr alt alu aoa aob aoc aod aoe aol aoo aor aot aou ar- ara arb arc ard are arl aro arr art aru at- ata atb atc atd ate atl ato atr att atu au- aua aub auc aud aue aul auo aur aut b-u baa bab bac bad bae bal bao bar bat bau bba bbb bbc bbd bbe bbl bbo bbr bbt bbu bca bcb bcc bcd bce bcl bco bcr bct bcu bda bdb bdc bdd bde bdl bdo bdr bdt bdu be- bea beb bec bed bee bel beo ber bet beu bla blb blc bld ble bll blo blr blt blu boa bob boc bod boe bol boo bor bot bou bra brb brd bre brl bro brr brt bru bta btb btc btd bte btl bto btr btt btu bua bub buc bud bue bul buo bur but buu c-- caa cab cac cad cae cal cao car cat cau cba cbb cbc cbd cbe cbl cbo cbr cbt cbu cca ccb ccc ccd cce ccl cco ccr cct ccu cda cdb cdc cdd cde cdl cdo cdr cdt cdu ce- cea ceb cec ced cee cel ceo cer cet ceu cl- cla clb clc cld cle cll clo clr clt clu co- coa cob coc cod coe col coo cor cot cou cra crb crc crd cre crl cro crr crt cru cta ctb ctc ctd cte ctl cto ctr ctt ctu cua cub cuc cud cue cul cuo cur cut cuu daa dab dac dad dae dal dao dar dat dau dba dbb dbc dbd dbe dbl dbo dbr dbt dbu dca dcb dcc dcd dce dcl dco dcr dct dcu dda ddb ddc ddd dde ddl ddo ddr ddt ddu de- dea deb dec ded dee del deo der det deu dl- dla dlb dlc dld dle dll dlo dlr dlt dlu doa dob doc dod doe dol doo dor dot dou dra drb drc drd dre drl dro drr drt dru dta dtb dtc dtd dte dtl dto dtr dtt dtu dua dub duc dud due dul duo dur dut eaa eab eac ead eae eal eao ear eat eau eba ebb ebc ebd ebe ebl ebo ebr ebt ebu ec- eca ecb ecc ecd ece ecl eco ecr ect ecu ed- eda edb edc edd ede edl edo edr edt edu eea eeb eec eed eee eel eeo eer eet ela elb elc eld ele ell elo elr elt elu eo- eoa eob eoc eod eoe eol eoo eor eot eou era erb erc erd ere erl ero err ert eru eta etb etc etd ete etl eto etr ett etu eu- eua eub euc eud eue eul eur eut la- laa lab lac lad lae lal lao lar lat lau lba lbb lbc lbd lbe lbl lbo lbr lbt lbu lca lcb lcc lcd lce lcl lco lcr lct lcu lda ldb ldc ldd lde ldl ldo ldr ldt ldu lea leb lec led lee lel leo ler let leu lla llb llc lld lle lll llo llr llt llu loa lob loc lod loe lol loo lor lot lou lra lrb lrc lrd lro lrr lrt lru lta ltb ltc ltd lte ltl lto ltr ltt ltu lua lub luc lud lue lul luo lur lut luu oaa oab oac oad oae oal oao oar oat oau ob- oba obb obc obd obe obl obo obr obt obu oc- oca ocb occ ocd ocl oco ocr oct ocu oda odb odc odd ode odl odo odr odt odu oea oeb oec oed oee oel oeo oer oet ola olb olc old ole oll olo olt olu oo- ooa oob ooc ood ool ooo oor oot or- ora orb orc ord ore orl oro orr ort oru ot- ota otb otc otd ote otl oto otr ott otu ou- oua ouc oud oue oul ouo our out ra- raa rab rac rad rae ral rao rar rat rau rba rbb rbc rbd rbe rbl rbo rbr rbt rbu rca rcb rcc rcd rce rcl rco rcr rct rcu rda rdb rdc rdd rde rdl rdo rdr rdt rdu re- rea reb rec red ree rel reo rer ret reu rla rlc rld rle rll rlo rlr rlt rlu roa rob roc rod roe rol roo ror rot rou rra rrb rrc rrd rrl rrr rrt rru rta rtb rtc rtd rte rtl rto rtr rtt rtu rua rub ruc rud rue ruo rur rut ruu taa tab tac tad tae tal tao tar tat tau tba tbb tbc tbd tbe tbl tbo tbr tbt tbu tca tcb tcc tcd tce tcl tco tcr tct tcu tda tdb tdc tdd tde tdl tdo tdr tdt tdu te- tea teb tec ted tee tel teo ter tet teu tla tlc tld tle tll tlo tlr tlt tlu to- toa tob toc tod toe tol too tor tot tou tra trb trc trd tre trl tro trr trt tru tta ttb ttc ttd tte ttl tto ttr ttt ttu tua tub tuc tud tue tul tuo tur tut tuu ua- uaa uab uac uad uae ual uao uar uat uau uba ubb ubc ube ubl ubo ubr ubt ubu uca ucb ucc ucd uce ucl uco ucr uct ucu uda udb udc udd ude udl udo udr udt udu uea ueb uec ued uee uel uer uet ula ulb ulc uld ule ull ulo ulr ult ulu uoa uob uoc uod uoe uol uoo uor uot ur- ura urb urc urd ure url uro urr urt uru uta utb utc utd ute