-al -er -ic -ol a-a a-b a-c a-i a-t aaa aab aac aae aai aal aao aar aat ab- aba abb abc abe abi abl abo abr abt ac- aca acb acc ace aci acl aco acr act aea aeb aec aee aei ael aeo aer aet ai- aia aib aic aie aii ail aio air ait al- ala alb alc ale ali all alo alr alt aoa aob aoc aoe aoi aol aoo aor aot ar- ara arb arc are ari arl aro arr art at- ata atb atc ate ati atl ato atr att baa bab bac bae bai bal bao bar bat bba bbb bbc bbe bbi bbl bbo bbr bbt bca bcb bcc bce bci bcl bco bcr bct be- bea beb bec bee bei bel beo ber bet bi- bia bib bic bie bii bil bio bir bit bla blb blc ble bli bll blo blr blt boa bob boc boe boi bol boo bor bot bra brb bre bri brl bro brr brt bta btb btc bte bti btl bto btr btt c-- caa cab cac cae cai cal cao car cat cba cbb cbc cbe cbi cbl cbo cbr cbt cca ccb ccc cce cci ccl cco ccr cct ce- cea ceb cec cee cei cel ceo cer cet ci- cia cib cic cie cii cil cio cir cit cl- cla clb clc cle cli cll clo clr clt co- coa cob coc coe coi col coo cor cot cra crb crc cre cri crl cro crr crt cta ctb ctc cte cti ctl cto ctr ctt eaa eab eac eae eai eal eao ear eat eba ebb ebc ebe ebi ebl ebo ebr ebt ec- eca ecb ecc ece eci ecl eco ecr ect eea eeb eec eee eel eeo eer eet eia eib eic eie eii eil eio eir eit ela elb elc ele eli ell elo elr elt eo- eoa eob eoc eoe eoi eol eoo eor eot era erb erc ere eri erl ero err ert eta etb etc ete eti etl eto etr ett ia- iaa iab iac iae iai ial iao iar iat iba ibb ibc ibe ibi ibl ibo ibr ibt ica icb icc ice ici icl ico icr ict ie- iea iec iee iei iel ier iet iia iib iic iie iii iil iio iir iit il- ila ilb ilc ile ili ill ilo ilr ilt io- ioa iob ioc ioe ioi iol ioo ior iot ir- ira irb irc ire iri irl iro irr irt ita itb itc ite iti itl ito itt la- laa lab lac lae lai lal lao lar lat lba lbb lbc lbe lbi lbl lbo lbr lbt lca lcb lcc lce lci lcl lco lcr lct lea leb lec lee lei lel leo ler let lia lib lic lie lii lil lio lir lit lla llb llc lle lli lll llo llr llt loa lob loc loe loi lol loo lor lot lra lrb lrc lri lro lrr lrt lta ltb ltc lte lti ltl lto ltr ltt o-i oaa oab oac oae oai oal oao oar oat ob- oba obb obc obe obi obl obo obr obt oc- oca ocb occ oci ocl oco ocr oct oea oeb oec oee oei oel oeo oer oet oia oib oic oie oii oil oio oir oit ola olb olc ole oli oll olo olt oo- ooa oob ooc ooi ool ooo oor oot or- ora orb orc ore ori orl oro orr ort ot- ota otb otc ote oti otl oto otr ott ra- raa rab rac rae rai ral rao rar rat rba rbb rbc rbe rbi rbl rbo rbr rbt rca rcb rcc rce rci rcl rco rcr rct re- rea reb rec ree rei rel reo rer ret ria rib ric rie rii ril rio rir rit rla rlc rle rli rll rlo rlr rlt roa rob roc roe roi rol roo ror rot rra rrb rrc rri rrl rrr rrt rta rtb rtc rte rti rtl rto rtr rtt taa tab tac tae tai tal tao tar tat tba tbb tbc tbe tbi tbl tbo tbr tbt tca tcb tcc tce tci tcl tco tcr tct te- tea teb tec tee tei tel teo ter tet tia tib tic tie tii til tio tir tit tla tlc tle tli tll tlo tlr tlt to- toa tob toc toe toi tol too tor tot tra trb trc tre tri trl tro trr trt tta ttb ttc tte tti ttl tto ttr ttt