-al -er a-a a-b a-c a-t aaa aab aac aad aae aal aar aat ab- aba abb abc abd abe abl abr abt ac- aca acb acc acd ace acl acr act ad- ada adb adc add ade adl adr adt aea aeb aec aed aee ael aer aet al- ala alb alc ald ale all alr alt ar- ara arb arc ard are arl arr art at- ata atb atc atd ate atl atr att baa bab bac bad bae bal bar bat bba bbb bbc bbd bbe bbl bbr bbt bca bcb bcc bcd bce bcl bcr bct bda bdb bdc bdd bde bdl bdr bdt be- bea beb bec bed bee bel ber bet bla blb blc bld ble bll blr blt bra brb brd bre brl brr brt bta btb btc btd bte btl btr btt c-- caa cab cac cad cae cal car cat cba cbb cbc cbd cbe cbl cbr cbt cca ccb ccc ccd cce ccl ccr cct cda cdb cdc cdd cde cdl cdr cdt ce- cea ceb cec ced cee cel cer cet cl- cla clb clc cld cle cll clr clt cra crb crc crd cre crl crr crt cta ctb ctc ctd cte ctl ctr ctt daa dab dac dad dae dal dar dat dba dbb dbc dbd dbe dbl dbr dbt dca dcb dcc dcd dce dcl dcr dct dda ddb ddc ddd dde ddl ddr ddt de- dea deb dec ded dee del der det dl- dla dlb dlc dld dle dll dlr dlt dra drb drc drd dre drl drr drt dta dtb dtc dtd dte dtl dtr dtt eaa eab eac ead eae eal ear eat eba ebb ebc ebd ebe ebl ebr ebt ec- eca ecb ecc ecd ece ecl ecr ect ed- eda edb edc edd ede edl edr edt eea eeb eec eed eee eel eer eet ela elb elc eld ele ell elr elt era erb erc erd ere erl err ert eta etb etc etd ete etl etr ett la- laa lab lac lad lae lal lar lat lba lbb lbc lbd lbe lbl lbr lbt lca lcb lcc lcd lce lcl lcr lct lda ldb ldc ldd lde ldl ldr ldt lea leb lec led lee lel ler let lla llb llc lld lle lll llr llt lra lrb lrc lrd lrr lrt lta ltb ltc ltd lte ltl ltr ltt ra- raa rab rac rad rae ral rar rat rba rbb rbc rbd rbe rbl rbr rbt rca rcb rcc rcd rce rcl rcr rct rda rdb rdc rdd rde rdl rdr rdt re- rea reb rec red ree rel rer ret rla rlc rld rle rll rlr rlt rra rrb rrc rrd rrl rrr rrt rta rtb rtc rtd rte rtl rtr rtt taa tab tac tad tae tal tar tat tba tbb tbc tbd tbe tbl tbr tbt tca tcb tcc tcd tce tcl tcr tct tda tdb tdc tdd tde tdl tdr tdt te- tea teb tec ted tee tel ter tet tla tlc tld tle tll tlr tlt tra trb trc trd tre trl trr trt tta ttb ttc ttd tte ttl ttr ttt

a-be aaaa aaab aaac aaad aaae aaal aaar aaba aabb aabc aabd aabl aabt aaca aacb aacc aacd aace aacl aacr aact aada aadc aade aadt aaea aaec aala aalc aald aale aall aara aarc aard aare aart aata aatc aatt abaa abab abac abad abae abal abar abat abb- abba abbb abbe abbr abbt abca abcb abcc abcd abcl abcr abct abda abec abed abee abel aber abet abla able abra abrc abta ac-t acaa acab acac acad acae acar acat acba acbl acca accc accd acce acct acda acdb acdc acde acdt ace- acea acec aced acel acer acet acla aclc acle aclr acr- acra acrc acre acrr acta actc acte actl actt adaa adab adac adad adae adal adar adat adba adbc adcc adda addc addd adde addl addr adea adeb adee adel ader adet adle adra adre adta aeac aecb aecl aect aede aedt aeer aela aelc aer- aera aerc aerd aeta aetc aetr aett alaa alac alad alae alal alar alat alb- alba albc albe alca alcc alce ald- alda alde aldl alea alec aled alee aler alet all- alla alle alll allr alta alte arab arac arad arae aral arar arat arba arbe arc- arca arce arct arda ardc arde ardl area arec ared aree arel aret arla arle arr- arra arrc arre arrr arrt arta artc arte artr at-l at-t ataa atab atac atad atae atal atar atat atca atcc atcl atcr atdt atea atec ated atee atel ater atla atle atra atrc atre atta atte attr baaa baad baal baar baat baba babb babe babr bac- baca bacc bace bact bada badb badd bade badr baed bael baer bala balc bald bale ball balt bar- bara barb barc bard bare barr bart bata batc bate batt bbad bbbb bbdd bbeb bbet bblb bbrc bcaa bcar bcat bcbc bcca bccc bccl bcda bcde bcec bcer bcet bcra bctc bd-r bdbc bddc bdle bead beal bear beat beba bebb bebe beca beda bede bedl beeb beed beel beer beet bela beld bele bell belt bera berc berd bere berr bert beta betc bete bett blaa blab blac blad blae blat blbt bldc bldr blea bleb bled blee blet blrc brab brac brad brae brat brca brcb brce brda brdt brea breb brec bred bree brel brer bret brrr brtc btaa btcc btcl btdt btec btla btrc btrt bttb c-cd caaa caab caac caal caat caba cabe cac- caca cacc cace cacr cada cadc cadd cade cadr caec caer cala calc cald cale call calt cara carb carc card care carl carr cart cat- cata catb catc catd cate catt cbac cbal cbar cbat cbbc cbca cbcc cbce cbcl cbcr cbct cbdb cbdc cbea cbec cbee cber cbet cblb cblc cbrd cbre cbrl cbrt cbta cbtc cbtl ccaa ccab ccac ccad ccar ccat ccba ccbc