-er -th a-a a-b a-t aaa aab aae aaf aah aak aao aar aat ab- aba abb abe abf abh abk abo abr abt aea aeb aee aef aeh aek aeo aer aet af- afa afb afe aff afh afk afo afr aft aha ahb ahe ahf ahh ahk aho ahr aht aka akb ake akh akk ako akr aoa aob aoe aof aoh aok aoo aor aot ar- ara arb are arf arh ark aro arr art at- ata atb ate atf ath ato atr att baa bab bae baf bah bak bao bar bat bba bbb bbe bbf bbh bbk bbo bbr bbt be- bea beb bee bef beh bek beo ber bet bfa bfb bfe bff bfh bfo bfr bft bha bhb bhe bhf bhh bhk bho bhr bht bka bkb bke bkf bkk bko bkr bkt boa bob boe bof boh bok boo bor bot bra brb bre brf brh brk bro brr brt bta btb bte btf bth btk bto btr btt eaa eab eae eaf eah eak eao ear eat eba ebb ebe ebf ebh ebk ebo ebr ebt eea eeb eee eef eek eeo eer eet ef- efa efb efe eff efh efo efr eft eha ehb ehe ehf ehh eho ehr eht eka ekb eke ekf ekh eko ekr ekt eo- eoa eob eoe eof eoh eok eoo eor eot era erb ere erf erh erk ero err ert eta etb ete etf eth etk eto etr ett faa fab fae faf fah fak fao far fat fba fbb fbe fbf fbh fbk fbo fbr fbt fea feb fee fef feh fek feo fer fet ffa ffe fff ffh ffk ffo ffr fft fha fhb fhe fhf fhh fho fhr fka fkb fkf fkk fkt foa fob foe fof foh fok foo for fot fra frb fre frf frh frk fro frr frt fta ftb fte ftf fth ftk fto ftr ftt haa hab hae haf hah hak hao har hat hba hbb hbe hbf hbh hbk hbo hbr hbt he- hea heb hee hef heh hek heo her het hfa hfb hfe hff hfh hfk hfo hfr hft hha hhb hhe hhf hhh hhk hho hhr hht hka hkb hkf hkh hkk hko hkr hkt hoa hob hoe hof hoh hok hoo hor hot hr- hra hrb hre hrf hrh hrk hro hrr hrt hta htb hte htf hth htk hto htr htt k-t ka- kaa kab kae kaf kah kak kao kar kat kba kbb kbe kbf kbh kbk kbo kbr ke- kea keb kee kef keh kek keo ker ket kfa kff kfh kfo kha khe khf khh khk kho khr kkb kke kkh kkk kkr kkt koa kob koe kof koh kok koo kor kot kra krf krk kro krr krt kta ktb kte ktf kth ktk kto ktr ktt oaa oab oae oaf oah oak oao oar oat ob- oba obb obe obf obh obk obo obr obt oea oeb oee oef oeh oeo oer oet of- ofa ofb ofe off ofo ofr oft oha ohe ohf ohh oho ohr oht oka okb oke okk oko okr oo- ooa oob oof ooh ook ooo oor oot or- ora orb ore orf orh ork oro orr ort ot- ota otb ote otf oth otk oto otr ott ra- raa rab rae raf rah rak rao rar rat rba rbb rbe rbf rbh rbk rbo rbr rbt re- rea reb ree ref reh rek reo rer ret rfa rfb rfe rff rfh rfk rfo rfr rft rh- rha rhb rhe rhf rhh rho rhr rht rkb rke rkf rkk rko rkt roa rob roe rof roh rok roo ror rot rra rrb rrf rrh rrk rrr rrt rta rtb rte rtf rtk rto rtr rtt taa tab tae taf tah tak tao tar tat tba tbb tbe tbf tbh tbk tbo tbr tbt te- tea teb tee tef teh tek teo ter tet tfa tfb tfe tff tfh tfk tfo tfr tft th- tha thb the thf thh thk tho thr tht tka tkb tke tkk tko tkr tkt to- toa tob toe tof toh tok too tor tot tra trb tre trf trh trk tro trr trt tta ttb tte ttf tth ttk tto ttr ttt

a-ak a-be a-ha a-ok aaaa aaab aaae aaaf aaah aaar aaba aabb aabh aabt aaea aafa aafb aaff aaha aahk aaka aake aaoe aaoo aara aare aaro aart aata aatf aatk aatt abaa abab abae abaf abak abar abat abb- abba abbb abbe abbo abbr abbt abee aber abet abff abha abho abhr aboa abob abof aboh abok aboo abor abot abra abro abta aeaf aeer aeka aer- aera aero aeta aetf aeto aetr aett afaa afak afao afar afat afee afek afer afet affa affo afft afka afkr afoa afoe afoo afor afr- afra afre afro afta afte ahab ahah ahar ahat ahet ahfa ahha ahoa ahoe ahok ahor ahot ahra ahre ahrr ahta ahte ahto akaa akae akah akao akar akee aker akha akka akko akok akot akr- akra akre akte aoah aoba aora aorb aort aotf arab arae araf arah arak arar arat arba arbe arbh area aree aref areh arek areo aret arfa arfb arff arft arh- arka arke arkh arko aroa arob aroe aroo aror arr- arra arre arrh arrk arro arrr arrt arta arte arth arto artr at-t ataa atab atae atak atar atat atea atee atef ateo ater atfb atfe atha athe atho atka atkt atob atoe atof atok ator atot atra atre atrk atro atta atte atto attr baaa baaf baah baak baar baat baba babb babe babo babr baek baer baff bafo baft baha baho bahr baht bak- baka bake bakh bako bakr bakt baoh bar- bara barb bare barf barh bark baro barr bart bata bate batf bath bato batt bbbb bbeb bbet beaf beah beak bear beat beba bebb bebe bebo beeb beef beek beer beet befa befe beff befo beft behr beka beke beko beo- beof beok beor beot bera