-vac a-be aaaa aaab aaac aaae aaar aaav aaba aabb aabc aaca aacb aacc aace aaco aacr aacv aaea aaec aaev aage aaoe aaoo aara aarc aare aaro aava abaa abab abac abae abag abar abb- abba abbb abbe abbo abbr abca abcb abcc abcr abec abee aber aboa abob aboo abor abov abra abrc abro abva acaa acab acac acae acag acar acba acca accc acce acco ace- acea acec acer acev acga acgr acoa acoe acog acor acr- acra acrc acre acro acrr acrv acvv aeac aecb aeer aega aer- aera aerc aero aeva ag-o agac agag agao agar agav agba agbo agca agcc agce agco agea agee ager agga agge agob agog agoo agra agre agro agva aoba aoca aoce aora aorb arab arac arae arag arar arba arbe arc- arca arce arco area arec aree areg areo arev arga argb arge argo aroa arob aroe aroo aror arr- arra arrc arre arrg arro arrr arva arve arvo avab avao avar avcc avce avco avea avec aveo aver avgo avor avra avre avro avva avvo baaa baar baba babb babe babo babr bac- baca bacc bace baco baer baga bage bagg bago bar- bara barb barc bare barg baro barr bava bave bbbb bbeb bbga bbrc bbrg bcaa bcar bcbc bcbg bcca bccc bcec bcer bcor bcra bcvo beag bear beav beba bebb bebe bebo beca beeb beeg beer bega begg bego beo- beor bera berc bere berg bero berr bevo bgca boab boac boag boar boba bobb bobe bobo boca boce boco boea boec boee boeo boer boga boge bogg bogo boob booc booe boog boor bor- bora bore borg boro borr bova bove bovo brab brac brae brag brao brav brca brcb brce brea breb brec bree breg breo brer brev broa brob broc broe brog broo bror brrr c-bo caaa caab caac caba cabe cabg cabo cac- caca cacc cace caco cacr caec caer caga cage cagg cago cagr caor cara carb carc care caro carr cava cave cavo 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 ccob ccoc ccra ccrc ccre ccrg ccvo ceac cear ceba cec- ceca cece ceco ceeb ceec cege cego ceor cer- cera cerc cere cero ceva cevo cgac cgcc cgcg cger cgro coag coba cobb cobe cobo coca coce coco cogo coob cor- cora corb corc core corg coro corr cova cove covo crab crac crag crar crbc crca crcc crce crcr cre- crea creb crec cree creg creo crob croc croe croo cror cvac cvar cvca cvcc cver cvra cvrg cvrr eaba eaca eacc eaec eaga eage eara earb eare earo eave ebac ebba ebbc ebbo ebbr ebcc eber eboe eboo ebor ebro ecaa ecac ecao ecar ecbc ecbe ecca eccb eccc ecce ecco eco- ecog ecra ecrc ecrr ecrv eeca eeea eeee eega eeoc eera eerc eerg eero eeva egaa egae egao egar egba egbe egcc egcg egcr egea egec egee eger eggb egge eggo ego- egor egov egra egre eora eore erba erbb erbe erca ercc erce ereb erec erer erev erg- erga ergg ergo erob eroc eroe eroo erra errc erre erro erve evac evae evar evea ever evga evoe evoo evra evre gaar gaba gabb gabe gabo gabr gace gaea gaec gaer gaga gage gagg gago gara garb gare garg garo garr garv gava gave gbag gbbo gc-c gcaa gcbc gccc gcoa gcov gcrg geab gear geba gebe geca gece geer gege gegg gego geo- geog gera gerb gere gero geva geve gevo gggg goar goba gobe gobo goca goce gocr goer goga gogo goog goor gora gorb gore gorg goro gorr gove grab grac grae grav grbr grcc grce grea greb grec gree greg grev grob groc grog groo gror grov grrr grve gvvv o-eo oaer oara oare obba obbo obea obec ober oboe obor obra obre obro ocab ocac ocbc occa occc oce ocee ocga ocra ocre ocro ocrr oec- oeca oecc oeec oegb oera oere ogae ogar ogb ogba ogbe ogea ogee oger ogge ogoa ogog ogra ogre ogro ooaa ooba oobe oocr ooer oooo oora oore orab orac orae orao orar orav orba orbb orbe orbo orca orce orco ore- orea oreb orec oreg oreo orer orga orge orgo oro- oroe oror orra orro orve orvr ovar ovee over ovo- ovoo ovra ovre raab raag raba rabb rabe rabo rac- raca racc race raco racv raec raeg raer raga rage ragg rago raob raoc rara rarb rare raro rava rave rbbb rbbr rcac rcbc rcbo rccb rccc rcga rcgc rcrg rcvr rea- reac reae reao rear reba rebb rebe rebo reca recc rece recr reeb reev rega rege rego regr reog rera rere rerg rero reva reve revo rgba rgbe roab roag roar rob- roba robb robe robo roca rocc roce roco roea roeg roer roev roga roge rogg rogo roob roog roor rora rorc rore roro rova rove rovo rrrr rv-c rvca rver vaar vaca vace vaco vag- vaga vage vagg vara vare varg varr vava vbcc vbrg vear veba vecc veer vega vege veor ver- vera verb vere vero veve vevo vgcc voar voca voce voer voga voge vooc voog voor vor- vora vore voro vrac vrav vrba vreo vroc vver vvob vvog vvvv