-er bbb bbd bbe bbi bbo bbr bbt bdb bdd bde bdi bdo bdr bdt be- beb bed bee bei beo ber bet bi- bib bid bie bii bio bir bit bob bod boe boi boo bor bot brb brd bre bri bro brr brt btb btd bte bti bto btr btt dbb dbd dbe dbi dbo dbr dbt ddb ddd dde ddi ddo ddr ddt de- deb ded dee dei deo der det di- dib did die dii dio dir dit dob dod doe doi doo dor dot drb drd dre dri dro drr drt dtb dtd dte dti dto dtr dtt ebb ebd ebe ebi ebo ebr ebt ed- edb edd ede edi edo edr edt eeb eed eee eeo eer eet eib eid eie eii eio eir eit eo- eob eod eoe eoi eoo eor eot erb erd ere eri ero err ert etb etd ete eti eto etr ett i-d ibb ibd ibe ibi ibo ibr ibt idb idd ide idi ido idr idt ie- ied iee iei ier iet iib iid iie iii iio iir iit io- iob iod ioe ioi ioo ior iot ir- irb ird ire iri iro irr irt itb itd ite iti ito itt o-i ob- obb obd obe obi obo obr obt odb odd ode odi odo odr odt oeb oed oee oei oeo oer oet oib oid oie oii oio oir oit oo- oob ood ooi ooo oor oot or- orb ord ore ori oro orr ort ot- otb otd ote oti oto otr ott rbb rbd rbe rbi rbo rbr rbt rdb rdd rde rdi rdo rdr rdt re- reb red ree rei reo rer ret rib rid rie rii rio rir rit rob rod roe roi roo ror rot rrb rrd rri rrr rrt rtb rtd rte rti rto rtr rtt tbb tbd tbe tbi tbo tbr tbt tdb tdd tde tdi tdo tdr tdt te- teb ted tee tei teo ter tet tib tid tie tii tio tir tit to- tob tod toe toi too tor tot trb trd tre tri tro trr trt ttb ttd tte tti tto ttr ttt

bbbb bbdd bbdo bbeb bbet bd-r bdii bebb bebe bebi bebo bede bedi bedo beeb beed beer beet beir beit beo- beod beor beot berd bere beri bero berr bert bete beti beto bett bibb bibe bibi bibo bide bidi bido bidr bieb bied bier biet bio- bioi biot birb bird bire biri biro birr birt bitd bite bito bitt bobb bobe bobi bobo bodb bode bodi bodo boee boeo boer boet boi- boid boie boii boit boob bood booe boor boot bor- bord bore bori boro borr bort botb botd bote boti boto bott brdo brdt breb bred bree brei breo brer bret brid brie brio brit brob brod broe broo bror brot brrr btdt btie btob btor btrt bttb d-bo dbit dbtt dddd ddie ddot ddre debe debi debt dedd dede dedi dedo deeb deed deer deet deid deie deir deit deor der- derb dere deri dero derr dete deto detr dibb dibe dibo dide didi dido dieb died dier diet diii dior diot dird dire dirr dirt dite diti dito ditt dobb dobe dobi dod- dodd dode dodi dodo doer doid doit doob dood door doot dord dore dori doro dorr dort dotd dote doti doto dott dred dree drei dret drib drie drit drob drod drot dted dtor dtot ebbo ebbr ebed eber ebid ebit eboe eboo ebor ebro edde eddi eddo ede- edei eder edie edit edod eede eeee eero eete eid- eide eidi eido eidr eied eiei eier eird eire eitb eiti eito eitr eode eoir eore eori eotd eoto erbb erbe erde erdi ereb ered erei erer eret erie erio erit erob erod eroe eroi eroo erre erro etbr etee eter etio etoe etre etro ette etti etto i-be ibdo ibed ibet ibid ibie ibot ibrd ibri ibro ibtb idbe iddo ided idee ideo ider idid idie idio idir idre idro iedr ieet ieie ieio iere ieri iett iide iied iiie iiii iiio iiit iioi iioo iitr iitt iobi iod- iodd iode iodo ioee ioii ioio ioit iooi iooo iore iori iote ioto irbe irdo ired iree irer iri- irid irie irio irob irod irre irri irte irti itbe itdo iter itet itie itoi itoo itor itri itto o-eo obbo obdt obed ober obet obid obie obit oboe oboi obor obot obre obri obro obtd odbo oddd oddi oded odei odeo oder odet odie odio odir odoo odor odot oedo oeid oere oeti oido oier oiii oire oirt oiti oobe oobi oodi ooer ooid oooo oord oore oort ootb orbb orbe orbi orbo orde ordo ore- oreb ored oreo orer ori- orid orie orio orit oro- oroe oror orot orri orro orte orto otbd oted otee oter otit oto- otoe otoo otor otre otro otte otti otto rbbb rbbr rder rdio rebb rebe rebo redd rede redi redo redr reeb reed reet reid reii reir reit reod reot rerd rere reri rero rert retd rete reti reto retr rett rib- ribe ribo ridd ride ridi rido ried rier riet riot rire riri rite riti rito ritt rob- robb robe robi robo robt rodd rode rodi rodo roed roer roet roid roio roir roit roob rood rooi roor root rore rori roro rort rote roti roto rotr rott rred rrrr rtdt rtee rtei tbit tbrb tddb tdor tdri tebo tedd tede tedi teed teer teet teie teir teor ter- tere teri tero terr tete teti teto tetr tett tibi tidd tide tie- tied tiee tiei tieo tier tiet tiit tirb tird tire tiri tiro tirr tite titi tito titt tobe tobi tobo tobt todd tode todi todo todt toed toee toei toer toet toid toie toit tood toor toot tord tore tori toro torr tort totd tote toti toto totr tott tre- tred tree trei treo tret tri- trib trie trio trit trod troe troi troo trot trte trtr ttbb tteo tter ttoe tttt

-tree b-e-d bbbee bd-re bdoor