-er bbb bbe bbf bbi bbo bbr bbt be- beb bee bef bei beo ber bet bfb bfe bff bfi bfo bfr bft bi- bib bie bif bii bio bir bit bob boe bof boi boo bor bot brb bre brf bri bro brr brt btb bte btf bti bto btr btt ebb ebe ebf ebi ebo ebr ebt eeb eee eef eeo eer eet ef- efb efe eff efi efo efr eft eib eie eif eii eio eir eit eo- eob eoe eof eoi eoo eor eot erb ere erf eri ero err ert etb ete etf eti eto etr ett fbb fbe fbf fbi fbo fbr fbt feb fee fef fei feo fer fet ffe fff ffi ffo ffr fft fib fie fif fii fir fit fob foe fof foi foo for fot frb fre frf fri fro frr frt ftb fte ftf fti fto ftr ftt i-f ibb ibe ibf ibi ibo ibr ibt ie- iee ief iei ier iet ifb ife iff ifi ifo ifr ift iib iie iif iii iio iir iit io- iob ioe iof ioi ioo ior iot ir- irb ire irf iri iro irr irt itb ite itf iti ito itt o-i ob- obb obe obf obi obo obr obt oeb oee oef oei oeo oer oet of- ofb ofe off ofi ofo ofr oft oib oie oif oii oio oir oit oo- oob oof ooi ooo oor oot or- orb ore orf ori oro orr ort ot- otb ote otf oti oto otr ott rbb rbe rbf rbi rbo rbr rbt re- reb ree ref rei reo rer ret rfb rfe rff rfi rfo rfr rft rib rie rif rii rio rir rit rob roe rof roi roo ror rot rrb rrf rri rrr rrt rtb rte rtf rti rto rtr rtt tbb tbe tbf tbi tbo tbr tbt te- teb tee tef tei teo ter tet tfb tfe tff tfi tfo tfr tft tib tie tif tii tio tir tit to- tob toe tof toi too tor tot trb tre trf tri tro trr trt ttb tte ttf tti tto ttr ttt

bbbb bbeb bbet bebb bebe bebi bebo beeb beef beer beet befe beff befo beft beir beit beo- beof beor beot bere beri bero berr bert bete beti beto bett bftt bibb bibe bibi bibo bieb bief bier biet biff bifi bio- bioi biot birb bire biri biro birr birt bite bito bitt bobb bobe bobi bobo boee boef boeo boer boet bofe boff boi- boie boii boit boob booe boof boor boot bor- bore borf bori boro borr bort botb bote boti boto bott breb bree bref brei breo brer bret brie brio brit brob broe broo bror brot brrr btie btob btor btrt bttb ebbo ebbr eber ebit eboe eboo ebor ebro eeee eefe eero eete efbr efeo efet effi efit efor eft- eiei eier eire eitb eiti eito eitr eoir eore eori eoto erbb erbe ereb erei erer eret erft erie erio erit erob eroe eroi eroo erre erro etbr etee eter etfb etfe etio etoe etre etro ette etti etto febo feeb feer feet fefe feff fefi fefo feie feio feir feit feof ferb fere fero ferr fert fete feti fetr fett ffee ffff ffii ffrr fftf fibe fief fier fife fiff fifi fifo fift fiii fioe fior fire fite fiti fitt fobt foer fofo foie foof foot for- forb fore fori foro forr fort fote foti foto fott free frei freo fret frib frie frio frit frob froe frot fter ftii i-be ibet ibfi ibie ibot ibri ibro ibtb ieet ieie ieio iere ieri ietf iett ifbb ifer ifit ifor ifrb ifrf ifri ifto iiie iiii iiio iiit iioi iioo iitr iitt iobi ioee ioii ioio ioit ioof iooi iooo iore iori iote iotf ioto irbe iree irer irfe iri- irie irio irob irre irri irte irtf irti itbe iter itet itie itif itof itoi itoo itor itrf itri ittf itto o-eo obbo ober obet obie obit oboe oboi obor obot obre obri obro oere oeti ofer off- offe offo offr ofit ofor ofre oier oiii oire oirt oiti oobe oobi ooer ooff oooo oore oort ootb orbb orbe orbi orbo ore- oreb oreo orer orfe orff orfi ori- orie orif orio orit oro- oroe orof oror orot orri orro orte orto otee oter otif otit oto- otoe otof otoo otor otre otro otte otti otto rbbb rbbr rebb rebe rebo reeb reef reet refe reff refi refr reft reif reii reir reit reof reot rere reri rero rert rete reti reto retr rett rfef rib- ribe ribo rief rier riet rife riff rift riif riot rire riri rite riti rito ritt rob- robb robe robi robo robt roer roet rofe roff rofo roif roio roir roit roob roof rooi roor root rore rori roro rort rote roti roto rotr rott rrif rrrr rtbf rtee rtei rtfb tbit tbrb tebo teef teer teet teff tefi teft teie teir teor ter- tere terf teri tero terr tete teti teto tetr tett tfeb tfot tibi tie- tiee tief tiei tieo tier tiet tiff tifo tift tiit tirb tire tiri tiro tirr tite titi tito titt tobe tobi tobo tobt toee toei toer toet toff tofi tofo toft toie toit toof toor toot tore torf tori toro torr tort tote toti toto totr tott tre- tree tref trei treo tret trfr tri- trib trie trif trio trit troe troi troo trot trte trtr ttbb tteo tter ttff ttoe tttt

-tree bbbee be-er be-ro beber bebot bebti beebe beeft beeri beete beffe befie befit befoe befor beibi beier beife beire beite beofe beoff beoir beote berbe berei beret berie berio berit berob beroe beror berre berri berte berti berto betee beter betie betio betoo betor betre bett- bette betti betto bibbe bibbo biber bibie bibio bibri biebe biefe biere bieri biert bieti bifer biffi biffo bifor biore birie biter bitit bitof bitte bitti bitto bo-bo bobbi bobet bobr bobre bobri boero bofet boffi boffo boibe boier boire