-er bbb bbe bbg bbk bbr bbt be- beb bee beg bek ber bet bgb bge bgg bgk bgr bgt bjg bjj bjk bjr bjt bkb bke bkg bkk bkr bkt brb bre brg brj brk brr brt btb bte btg btk btr btt ebb ebe ebg ebj ebk ebr ebt eeb eee eeg eek eer eet egb ege egg egr egt ejt ekb eke ekg ekr ekt erb ere erg erk err ert etb ete etg etj etk etr ett gbe gbg gbj gbk gbr gbt ge- geb gee geg gek ger get ggb ggg ggj ggr ggt gje gjg gjr gjt gkb gkt grb gre grg grj grk grr grt gtb gte gtg gtk gtr gtt jbg jbj jbk jbr jbt jeb jee jeg jej jek jer jet jgb jge jgr jgt jjb jjg jjj jjk jjr jkb jkk jkr jkt jrb jrg jrk jrr jrt jtb jte jtg jtk jtr jtt k-t kbb kbe kbk kbr ke- keb kee keg kek ker ket kgb kjb kje kjr kkb kke kkk kkr kkt krg krk krr krt ktb kte ktg ktj ktk ktr ktt rbb rbe rbg rbk rbr rbt re- reb ree reg rek rer ret rgb rge rgg rgk rgr rgt rjg rjk rjr rkb rke rkg rkk rkt rrb rrg rrk rrr rrt rtb rte rtg rtj rtk rtr rtt tbb tbe tbg tbj tbk tbr tbt te- teb tee teg tej tek ter tet tgb tge tgg tgk tgr tgt tje tjr tkb tke tkg tkk tkr tkt trb tre trg trk trr trt ttb tte ttg ttk ttr ttt

bbbb bbeb bbet bbrg bebb bebe beeb beeg beej beek beer beet begg beke bere berg berk berr bert bete bett breb bree breg brek brer bret brje brkb brrr btek btrt bttb ebbr eber eeee eeke eerg eete egbe egee eger eggb egge egre egte egtk ejer ekeb ekek eker eket erbb erbe ereb erer eret erg- ergg erke erre etbr etee eter etre ette gebe geek geer geet gege gegg gerb gere gert getb gete getg getk gett ggbt gggg grbr greb gree greg gret grrr gtbr jebb jebe jeer jeet jeke jere jerk jert jetb jete jetg jett jrbr jrge jtbg kbbb kbbe kbbg kbbk kbbr kbbt kbeb kbee kbek kber kbet kbgb kbge kbgg kbgr kbgt kbjk kbjt kbkb kbkg kbkk kbkr kbrb kbre kbrg kbrj kbrk kbrt kbtb kbte kbtk kbtr kbtt kebb kebe kebr kebt keek keer keet kege kegg kegk kegr kejb kejj kekb keke ker- kerb kere kerk kerr kert ket- kete ketk ketr kett kgbb kgbr kgbt kgeb kget kggg kggr kgjt kgrb kgre kgrg kgrk kgrr kgrt kgtk kjbb kjbr kjee kjer kjet kjgt kjjj kjjk kjjr kjjt kjke kjkj kjkk kjkt kjrb kjrt kjtt kkbb kkbe kkbg kkbj kkbr kkbt kkeg kkgb kkgr kkjb kkjg kkjk kkkj kkkk kkrb kkre kkrk kkrr kkrt kktk krbb krbe krbg krbk krbr krbt kreb kree krej krek kret krgt krjb krje krjk krjt krke krkk krkr krrb krre krrg krrk krrr krrt krtk krtr ktbb ktbg ktbr ktbt ktee kteg ktek ktge ktgg ktgr ktjj ktkb ktke ktkk ktkr ktkt ktrb ktre ktrg ktrk ktrr ktrt kttg kttk kttr kttt rbbb rbbr rebb rebe rebk reeb reek reet rege regr regt reke rekt rere rerg rert rete retr rett rgbe rgtr rrrr rtee rtkg tbrb teej teek teer teet tegg tegt teke ter- tere terj terk terr tete tetr tett tkkg tre- tree treg trek tret trge trte trtr ttbb tter ttkg tttt

-tree b-r-k bbbee be-er bebek beber beebe beeke beete begee beget begge bejte beker bekke berbe bereg berek beret berge berk- berke berre berte betee beter betke betre bett- bette breek breer breet breg- brege bregg breke brere brett brrrr btr-t ebber ebbet eberg ebert eeeee egger egrek egret ekker erbbe erber erege erere erte erter eteke etete etree etrek etter gbeke gberg geber gebet gebke gebre geere geert geete gegge gerbe gerke gerre gertt getee geter gette grebe greek greer greet grege gregg grete grett grrrr gtk-- jebet jeerk jeker jerre jerte jetee jeter jette jtekt k-gee k-jee k-t-b kebbe kebek keber keere keget kerek keret kerre ketek keter kette kreek kreke krete rebbe rebeg reber rebet reege reere reger reget regge regtt rekke rere- reree reret retee reter retje retrg rette rt-rk rtejr tbtbt teber tebet teege tegre teket tekke terek teret terge terje terre tert- teter tetr- tette treer treet treg- trere trete trett ttttt

b-tree bbbbbb beebee beegee beeker beeter begger bekker berbee berber bereet berege bereke berere berger berker berrer berret bertre betere betete bettee better bjerke bjerre breege breere breger bregge brekke brette ebbert eebree egbere egbert eggert egjert ekberg erbree errett etgert gbegbe gebbet gebert geegee gegger gekker gerber gerege gerger gerret gertte getter gjergj greete greger gregge gregre greter grette gteter jebbet jeerer jegget jerker jettee jetter k-tree kebber keeker kegger kerber kerker kertee ketter kregbe kreker kretek r-tree reeker regret rejerk reteer reteet retere retree retret retter t-tree teebee teetee teeter terete terrer terret terter tertre tetete tetter tjejer tjeker trebek treete treget treker tretee trette

bbbbbbb beerkeg beetree begreet berbere bereket bergere bergger berrett bertree betberg bettger bk-tree bkerke bregger brekker eerbeek egeberg eggebek egrette ekeberg ekekete gebette gee-gee gerbert greetee greeter gregger gregree grgeteg kee-kee kegbeer kegeree kektebe kreeker rebberg reeberg regreet rejekk- reteere reterre retrete rettert tegerek terere tergett terreer terrere tettete trebget treetee tregerg trekker trettre

bbbbbbbb bebetter beerberg begetter berebere bergeret betterer egebjerg egerberk etbetter geekette gerettet greegree kerkebet ketterer re-beget teketeke

beebeebee eggerberg etterbeek getbetter greekgeek keek-keek regretter tebe-tebe terbregge

bergerette betterbeer

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