-er a-a a-b a-c aaa aab aac aae aag aar aav ab- aba abb abc abe abg abr abv ac- aca acb acc ace acg acr acv aea aeb aec aee aeg aer aev ag- aga agb agc age agg agr agv ar- ara arb arc are arg arr arv av- ava avb avc ave avg avr baa bab bac bae bag bar bav bba bbb bbc bbe bbg bbr bca bcb bcc bce bcg bcr bcv be- bea beb bec bee beg ber bev bga bgb bgc bge bgg bgr bgv bra brb bre brg brr brv bva bvb bvc bve bvg bvr bvv c-- caa cab cac cae cag car cav cba cbb cbc cbe cbg cbr cbv cca ccb ccc cce ccg ccr ccv ce- cea ceb cec cee ceg cer cev cga cgb cgc cge cgg cgr cgv cra crb crc cre crg crr crv cva cvb cvc cve cvg cvr cvv eaa eab eac eae eag ear eav eba ebb ebc ebe ebg ebr ebv ec- eca ecb ecc ece ecg ecr ecv eea eeb eec eee eeg eer eev ega egb egc ege egg egr era erb erc ere erg err erv eva evb evc eve evg evr evv gaa gab gac gae gag gar gav gba gbc gbe gbg gbr gbv gca gcb gcc gce gcg gcr ge- gea geb gec gee geg ger gev gga ggb ggc ggg ggr ggv gra grb grc gre grg grr grv gva gvb gvc gve gvg gvr ra- raa rab rac rae rag rar rav rba rbb rbc rbe rbg rbr rca rcb rcc rce rcg rcr rcv re- rea reb rec ree reg rer rev rga rgb rgc rge rgg rgr rgv rra rrb rrc rrg rrr rva rvb rvc rve rvg rvr rvv v-a v-e vaa vab vac vae vag var vav vba vbc vbg vbr vbv vca vcc vce vcr vea veb vec vee veg ver vga vgc vgg vgr vra vrb vrc vre vrg vrr vva vvb vvc vvg vvr vvv

-vac a-be aaaa aaab aaac aaae aaar aaav aaba aabb aabc aaca aacb aacc aace aacr aacv aaea aaec aaev aage aara aarc aare aava abaa abab abac abae abag abar abb- abba abbb abbe abbr abca abcb abcc abcr abec abee aber abra abrc abva acaa acab acac acae acag acar acba acca accc acce ace- acea acec acer acev acga acgr acr- acra acrc acre acrr acrv acvv aeac aecb aeer aega aer- aera aerc aeva agac agag agar agav agba agca agcc agce agea agee ager agga agge agra agre agva arab arac arae arag arar arba arbe arc- arca arce area arec aree areg arev arga argb arge arr- arra arrc arre arrg arrr arva arve avab avar avcc avce avea avec aver avra avre avva baaa baar baba babb babe babr bac- baca bacc bace baer baga bage bagg bar- bara barb barc bare barg barr bava bave bbbb bbeb bbga bbrc bbrg bcaa bcar bcbc bcbg bcca bccc bcec bcer bcra beag bear beav beba bebb bebe beca beeb beeg beer bega begg bera berc bere berg berr bgca brab brac brae brag brav brca brcb brce brea breb brec bree breg brer brev brrr caaa caab caac caba cabe cabg cac- caca cacc cace cacr caec caer caga cage cagg cagr cara carb carc care carr cava cave cbac cbar cbbc cbca cbcc cbce cbcr cbea cbec cbee cber cbga cbgb cbre cbva cbvb cbve cbvg cbvr ccaa ccab ccac ccag ccar ccba ccbc ccca cccb cccc cccv ccee ccga ccgc ccra ccrc ccre ccrg ceac cear ceba cec- ceca cece ceeb ceec cege cer- cera cerc cere ceva cgac cgcc cgcg cger crab crac crag crar crbc crca crcc crce crcr cre- crea creb crec cree creg cvac cvar cvca cvcc cver cvra cvrg cvrr eaba eaca eacc eaec eaga eage eara earb eare eave ebac ebba ebbc ebbr ebcc eber ecaa ecac ecar ecbc ecbe ecca eccb eccc ecce ecra ecrc ecrr ecrv eeca eeea eeee eega eera eerc eerg eeva egaa egae egar egba egbe egcc egcg egcr egea egec egee eger eggb egge egra egre erba erbb erbe erca ercc erce ereb erec erer erev erg- erga ergg erra errc erre erve evac evae evar evea ever evga evra evre gaar gaba gabb gabe gabr gace gaea gaec gaer gaga gage gagg gara garb gare garg garr garv gava gave gbag gc-c gcaa gcbc gccc gcrg geab gear geba gebe geca gece geer gege gegg gera gerb gere geva geve gggg grab grac grae grav grbr grcc grce grea greb grec gree greg grev grrr grve gvvv raab raag raba rabb rabe rac- raca racc race racv raec raeg raer raga rage ragg rara rarb rare rava rave rbbb rbbr rcac rcbc rccb rccc rcga rcgc rcrg rcvr rea- reac reae rear reba rebb rebe reca recc rece recr reeb reev rega rege regr rera rere rerg reva reve rgba rgbe rrrr rv-c rvca rver vaar vaca vace vag- vaga vage vagg vara vare varg varr vava vbcc vbrg vear veba vecc veer vega vege ver- vera verb vere veve vgcc vrac vrav vrba vver vvvv

-aaa- aaace aaaee aaarc aaarg aabaa aabba aabga aabra aacbc abaab ababa ababe abaca abaer abaga abara abare abava abave abbac abbar abccc abear abeba abebe abece abeer abega abege abegg abera abere aberg aberr abgar abrac abrar acaca acacb acage acar- acara acare acccg accra aceae acera acerb acrab acrea acree aeaea aebbe aegae aegea aeger aerva agace agara agava agave agege aggag aggar agger agree ar-ab ara-c arab- araba arabe araca arace araea arage arara arare arava arave arbab arbar arbee arber arbre arcae arcee areae arear areca arega arere areva arrea arvar avage avara avare avber avebe aveer aver- avera averb aveva aveve avgar avree baabe baava babar babec babee baber babra bacab bacar bacca bacea bagac bagag bagar bagea bager bagga bagge bagra bagre baraa barab barac barag barar barba