bbb bbd bbi bbo bbr bbs bbt bdb bdd bdi bdo bdr bds bdt bi- bib bid bii bio bir bis bit bob bod boi boo bor bos bot brb brd bri bro brr brs brt bsb bsd bsi bso bsr bss bst btb btd bti bto btr bts btt dbb dbd dbi dbo dbr dbs dbt ddb ddd ddi ddo ddr dds ddt di- dib did dii dio dir dis dit dob dod doi doo dor dos dot drb drd dri dro drr drs drt dsb dsd dsi dso dsr dss dst dtb dtd dti dto dtr dts dtt i-d ibb ibd ibi ibo ibr ibs ibt idb idd idi ido idr ids idt iib iid iii iio iir iis iit io- iob iod ioi ioo ior ios iot ir- irb ird iri iro irr irs irt is- isb isd isi iso isr iss ist itb itd iti ito its itt o-i ob- obb obd obi obo obr obs obt odb odd odi odo odr ods odt oib oid oii oio oir ois oit oo- oob ood ooi ooo oor oos oot or- orb ord ori oro orr ors ort os- osb osd osi oso osr oss ost ot- otb otd oti oto otr ots ott rbb rbd rbi rbo rbr rbs rbt rdb rdd rdi rdo rdr rds rdt rib rid rii rio rir ris rit rob rod roi roo ror ros rot rrb rrd rri rrr rrs rrt rsb rsd rsi rso rsr rss rst rtb rtd rti rto rtr rts rtt sbb sbd sbi sbo sbr sbs sbt sdb sdd sdi sdo sdr sds sdt sib sid sii sio sir sis sit sob sod soi soo sor sos sot sr- srb srd sri sro srr srs srt ss- ssb ssd ssi sso ssr sss sst stb std sti sto str sts stt tbb tbd tbi tbo tbr tbs tbt tdb tdd tdi tdo tdr tds tdt tib tid tii tio tir tis tit to- tob tod toi too tor tos tot trb trd tri tro trr trs trt tsb tsd tsi tso tsr tss tst ttb ttd tti tto ttr tts ttt

bbbb bbbs bbdd bbdo bd-r bdii bdos bdsd bibb bibi bibo bibs bidi bido bidr bids biis bio- bioi bios biot birb bird biri biro birr birs birt bis- bisd biso biss bist bitd bito bits bitt bobb bobi bobo bobs bodb bodi bodo bods boi- boid boii bois boit boob bood boor boos boot bor- bord bori boro borr bors bort bosi boso boss bost botb botd boti boto bots bott brdo brds brdt brid brio bris brit brob brod broo bror bros brot brrr brrs brsb brsr brst bsbd bsod bsos bsrd bssd bsts btdt btob btor btrt btss bttb d-bo dbit dbos dbrs dbss dbtt dddd ddot ddss ddts dibb dibo dibs didi dido dids diii diis dior dios diot dird dirr dirs dirt dis- disd disi diso diss dist diti dito dits ditt dobb dobi dobs dod- dodd dodi dodo dods doid dois doit doob dood door doos doot dord dori doro dorr dors dort dosi doso doss dost dotd doti doto dots dott drib drit drob drod drot drrs dsdr dsos dsri dsrr dssi dsst dsto dsts dtor dtot dtss ibdo ibid ibis ibos ibot ibrd ibri ibro ibss ibtb ibts iddo idid idio idir idis idos idro idso idss idts iiii iiio iiis iiit iioi iioo iios iirs iisd iisi iisr iist iitr iitt iobi iod- iodd iodo ioii ioio ioit iooi iooo ioos iori iors ioso ioto irdo irds iri- irid irio iris irob irod irri irrs irti irts isbd isbt isdb isds isis isit iso- isor isos isri issi isso issr isss istd isti isto istr ists itbs itdo itis itoi itoo itor itos itri itrs itsi itso itto obbo obdt obid obis obit oboi obor obos obot obri obro obsd obsr obss obst obtd obts odbo oddd oddi odds odio odir odis odoo odor odos odot odso odts oido oids oiii oios oirt oisd oist oiti oobi oodi ooid oooo ooos oord oort oosi oost ootb oots orbb orbi orbo orbs ordo ords ori- orid orio oris orit oro- oror oros orot orri orro orrs orsi orso orto orts osdi osii osis osoi osoo osor osos osrd osro ossb ossd ossi osso osti ostr osts otbd otbs otis otit oto- otoo otor otos otro otrs otso otti otto otts rbbb rbbr rbbs rbds rbis rbsd rbss rbst rdio rdos rdso rib- ribo ribs ridd ridi rido rids riis rios riot riri rirs risd risi riso riss rist riti rito rits ritt rob- robb robi robo robs robt rodd rodi rodo rods roid roio roir rois roit roob rood rooi roor roos root rori roro rort rosi roso ross rost roti roto rotr rots rott rrrr rsbi rsdd rsds rsid rsis rsos rsts rtdt rtss rtts s-ib s-ii s-os sbbs sbds sbor sbot sbsd sbsi sbst sdds sdib sdio sdot sdrs sdss sibi sibo sibs sidd sidi sido sidr sids siit siod sior sios siot siri siro sirr sirs sirt sisd sisi siss sist sit- sitd siti sito sits sitt sobo sobr sobs sobt sodd sodo sods soir sois soit sood soor soos soot sorb sord sori soro sorr sors sort sosi soso soss sost soto sots srib sris sros srsd srtr ssbr ssdd ssid ssis ssit ssot ssri ssrs sssb sssi ssss sstb sstd ssts stbd stbs stds stib stid stio stir stis stit stob stod stoo stor stos stot strd stri stro strs stsi stss sttd sttr tbbs tbit tbrb tbst tddb tdis tdor tdri tdss tibi tibs tidd tids tiit tios tirb tird tiri tiro tirr tirs tisb tisi tiso tiss tist titi tito tits titt tobi tobo tobs tobt todd todi todo tods todt toid tois toit tood toor toos toot tord tori toro torr tors tort tosb tosi toso toss tost totd toti toto totr tots tott tri- trib trio tris trit trod troi troo tros trot trsd trsi trst trtr