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a-ak a-be a-wa aaaa aaab aaac aaae aaar aaba aabb aabc aabt aabw aaca aacb aacc aace aack aacr aact aaea aaec aaka aake aara aarc aare aart aata aatc aatk aatt aatw aawt aaww abaa abab abac abae abak abar abat abaw abb- abba abbb abbe abbr abbt abca abcb abcc abcr abct abcw abec abee aber abet abra abrc abta abwa abwe abwr ac-t acaa acab acac acae acar acat acba acca accc acce acct ace- acea acec acek acer acet acke ackw acr- acra acrc acre acrr acta actc acte actt acwa acww aeac aecb aect aeer aeka aer- aera aerc aeta aetc aetr aett akaa akae akar akca akee aker akka akr- akra akre akte akwa arab arac arae arak arar arat araw arba arbe arc- arca arce arct area arec aree arek aret arew arka arke arr- arra arrc arre arrk arrr arrt arta artc arte artr arwa arwe at-t ataa atab atac atae atak atar atat atca atcc atck atcr atea atec atee ater atew atka atkt atra atrc atre atrk atta atte attr atwa atwt awac awae awar awbe awe- aweb awee awer awet awka awre awwa baaa baak baar baat baba babb babe babr bac- baca bacc bace back bact baek baer bak- baka bake bakr bakt bar- bara barb barc bare bark barr bart bata batc bate batt baw- bawe bawk bbbb bbeb bbet bbrc bbwc bbwr bcaa bcar bcat bcbc bcca bccc bcec bcer bcet bcra bctc beak bear beat beaw beba bebb bebe beca beck beeb beek beer beet beka beke bera berc bere berk berr bert beta betc bete bett betw bewa bewe brab brac brae brak brat braw brca brcb brce brcw brea breb brec bree brek brer bret brew brka brkb brrr brtc brwe btaa btcc btec btek btrc btrt bttb btwc bwaa caaa caab caac caat caba cabe cac- caca cacc cace cack cacr cacw caec caer caka cake cara carb carc care cark carr cart cat- cata catb catc cate catt catw cawk cbac cbar cbat cbbc cbca cbcc cbce cbcr cbct cbea cbec cbee cber cbet cbka cbkr cbre cbrt cbta cbtc cbwa ccaa ccab ccac ccar ccat ccba ccbc ccca cccb cccc ccee cckw 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 cewa cewe ckac ckat ckbc ckbe ckck ckcw cker ckrc ckrw cktb ckwr ckww crab crac crar crat craw crbc crca crcc crce crcr cre- crea creb crec cree cret crew crkc crrt crtc ctab ctae ctba ctca ctec ctrc ctta cttw cwac cweb cwer cwrw eaba eaca eacc eaec eara earb eare eart earw eata eate ebac ebba ebbc ebbr ebbw ebcc eber ecaa ecac ecar ecat ecbc ecbe ecca eccb eccc ecce ecct ecka ecra ecrc ecrr ect- ecta ectc ecwa eeca eeea eeee eeka eeke eera eerc eeta eetc eete eka- ekab ekeb ekek eker eket ekka ekta ekwe erat erba erbb erbe erca ercc