-er -th a-a a-b a-c a-t aaa aab aac aae aah aak aar aat ab- aba abb abc abe abh abk abr abt ac- aca acb acc ace ach ack acr act aea aeb aec aee aeh aek aer aet aha ahb ahc ahe ahh ahk ahr aht aka akb akc ake akh akk akr ar- ara arb arc are arh ark arr art at- ata atb atc ate ath atr att baa bab bac bae bah bak bar bat bba bbb bbc bbe bbh bbk bbr bbt bca bcb bcc bce bch bck bcr bct be- bea beb bec bee beh bek ber bet bha bhb bhc bhe bhh bhk bhr bht bka bkb bkc bke bkk bkr bkt bra brb bre brh brk brr brt bta btb btc bte bth btk btr btt c-- caa cab cac cae cah cak car cat cba cbb cbc cbe cbh cbk cbr cbt cca ccb ccc cce cch cck ccr cct ce- cea ceb cec cee ceh cek cer cet ch- cha chb chc che chh chk chr cht cka ckb ckc ckh ckt cra crb crc cre crh crk crr crt cta ctb ctc cte cth ctk ctr ctt eaa eab eac eae eah eak ear eat eba ebb ebc ebe ebh ebk ebr ebt ec- eca ecb ecc ece ech eck ecr ect eea eeb eec eee eek eer eet eha ehb ehc ehe ehh ehr eht eka ekb ekc eke ekh ekr ekt era erb erc ere erh erk err ert eta etb etc ete eth etk etr ett haa hab hac hae hah hak har hat hba hbb hbc hbe hbh hbk hbr hbt hca hcb hcc hce hch hck hcr hct he- hea heb hec hee heh hek her het hha hhb hhc hhe hhh hhk hhr hht hka hkb hkh hkk hkr hkt hr- hra hrb hrc hre hrh hrk hrr hrt hta htb htc hte hth htk htr htt k-t ka- kaa kab kac kae kah kak kar kat kba kbb kbc kbe kbh kbk kbr kca kcb kcc kce kch kck kcr kct ke- kea keb kec kee keh kek ker ket kha khe khh khk khr kkb kkc kke kkh kkk kkr kkt kra krc krk krr krt kta ktb ktc kte kth ktk ktr ktt ra- raa rab rac rae rah rak rar rat rba rbb rbc rbe rbh rbk rbr rbt rca rcb rcc rce rch rcr rct re- rea reb rec ree reh rek rer ret rh- rha rhb rhc rhe rhh rhr rht rkb rkc rke rkk rkt rra rrb rrc rrh rrk rrr rrt rta rtb rtc rte rtk rtr rtt taa tab tac tae tah tak tar tat tba tbb tbc tbe tbh tbk tbr tbt tca tcb tcc tce tch tck tcr tct te- tea teb tec tee teh tek ter tet th- tha thb thc the thh thk thr tht tka tkb tkc tke tkk tkr tkt tra trb trc tre trh trk trr trt tta ttb ttc tte tth ttk ttr ttt

a-ak a-be a-ha aaaa aaab aaac aaae aaah aaar aaba aabb aabc aabh aabt aaca aacb aacc aace aach aack aacr aact aaea aaec aaha aahk aaka aake aara aarc aare aart aata aatc aatk aatt abaa abab abac abae abak abar abat abb- abba abbb abbe abbr abbt abca abcb abcc abch abcr abct abec abee aber abet abha abhr abra abrc abta ac-t acaa acab acac acae acar acat acba acca accc acce acch acct ace- acea acec aceh acek acer acet acha ache achh achr acht acke acr- acra acrc acre acrr acta actc acte acth actt aeac aecb aect aeer aeka aer- aera aerc aeta aetc aetr aett ahab ahac ahah ahar ahat ahet ahha ahra ahrc ahre ahrr ahta ahte akaa akae akah akar akca akee aker akha akka akr- akra akre akte arab arac arae arah arak arar arat arba arbe arbh arc- arca arce arch arct area arec aree areh arek aret arh- arka arke arkh arr- arra arrc arre arrh arrk arrr arrt arta artc arte arth artr at-t ataa atab atac atae atak atar atat atca atcc atch atck atcr atea atec atee ater atha athe atka atkt atra atrc atre atrk atta atte attr baaa baah baak baar baat baba babb babe babr bac- baca bacc bace bach back bact baek baer baha bahr baht bak- baka bake bakh bakr bakt bar- bara barb barc bare barh bark barr bart bata batc bate bath batt bbbb bbch bbeb bbet bbrc bcaa bcar bcat bcbc bcca bccc bcec bcer bcet bche bcra bctc beah beak bear beat beba bebb bebe beca bech beck beeb beek beer beet behr beka beke bera berc bere berk berr bert beta betc bete beth bett bhar bhat bhca bhcc bher bhet bhra bhrt brab brac brae brah brak brat brca brcb brce brea breb brec bree brek brer bret brka brkb brrr brtc btaa btcc btec btek btrc btrt bttb caaa caab caac caah caat caba cabe cac- caca cacc cace cach cack cacr caec caer caha cahe caht caka cake cara carb carc care cark carr cart cat- cata catb catc cate cath catt cbac cbar cbat cbbc cbca cbcc cbce cbcr cbct cbea cbec cbee cber cbet cbha cbka cbkr cbre cbrh cbrt cbta cbtc ccaa ccab ccac ccar ccat ccba ccbc ccca cccb cccc ccee ccha cche cchr ccra ccrc ccre ccrt cctb cctc cctt ceac cear ceat ceba cec- ceca cece cect ceeb ceec ceke cer- cera cerc cere cert cet- ceta cete chaa chab chac chae chah chak char chat chca chce chch chea cheb chec chee cheh chek cher chet chha chka chkb chkt chra chrb chrc chrr chrt chtr chtt ckac ckat ckbc ckbe ckch ckck cker ckrc cktb crab crac crar crat crbc crca crcc crce crcr cre- crea creb crec cree creh cret crkc crrt crtc ctab ctae ctba ctca ctec ctrc ctta eaba eabh eaca eacc