-ol bbb bbg bbi bbl bbo bbr bbs bbt bgb bgg bgi bgl bgo bgr bgs bgt bi- bib big bii bil bio bir bis bit blb blg bli bll blo blr bls blt bob bog boi bol boo bor bos bot brb brg bri brl bro brr brs brt bsb bsg bsi bsl bso bsr bss bst btb btg bti btl bto btr bts btt gbg gbi gbl gbo gbr gbs gbt ggb ggg ggi ggo ggr ggs ggt gib gig gii gil gio gir gis git glb glg gli gll glo glr gls glt gob gog goi gol goo gor gos got grb grg gri grl gro grr grs grt gsb gsg gsi gsl gso gsr gss gst gtb gtg gti gtl gto gtr gts gtt ibb ibg ibi ibl ibo ibr ibs ibt igb igg igi igl igo igr igs igt iib iii iil iio iir iis iit il- ilb ilg ili ill ilo ilr ils ilt io- iob iog ioi iol ioo ior ios iot ir- irb irg iri irl iro irr irs irt is- isb isg isi isl iso isr iss ist itb itg iti itl ito its itt lbb lbg lbi lbl lbo lbr lbs lbt lgb lgg lgi lgl lgo lgr lgs lgt lib lig lii lil lio lir lis lit llb llg lli lll llo llr lls llt lob log loi lol loo lor los lot lrb lrg lri lro lrr lrs lrt lsb lsg lsi lsl lso lsr lss lst ltb ltg lti ltl lto ltr lts ltt o-i ob- obb obg obi obl obo obr obs obt ogg ogi ogl ogo ogs ogt oib oii oil oio oir ois oit olb olg oli oll olo ols olt oo- oob oog ooi ool ooo oor oos oot or- orb org ori orl oro orr ors ort os- osb osg osi osl oso osr oss ost ot- otb otg oti otl oto otr ots ott rbb rbg rbi rbl rbo rbr rbs rbt rgb rgg rgi rgo rgr rgs rgt rib rig rii ril rio rir ris rit rlg rli rll rlo rlr rls rlt rob rog roi rol roo ror ros rot rrb rrg rri rrl rrr rrs rrt rsb rsg rsi rsl rso rsr rss rst rtb rtg rti rtl rto rtr rts rtt sbb sbg sbi sbl sbo sbr sbs sbt sgb sgg sgi sgl sgo sgr sgs sgt sib sig sii sil sio sir sis sit slb slg sli sll slo slr sls slt sob sog soi sol soo sor sos sot sr- srb srg sri srl sro srr srs srt ss- ssb ssg ssi ssl sso ssr sss sst stb stg sti stl sto str sts stt tbb tbg tbi tbl tbo tbr tbs tbt tgb tgg tgi tgl tgo tgr tgs tgt tib tig tii til tio tir tis tit tlg tli tll tlo tlr tls tlt to- tob tog toi tol too tor tos tot trb trg tri trl tro trr trs trt tsb tsg tsi tsl tso tsr tss tst ttb ttg tti ttl tto ttr tts ttt

bbbb bbbs bblb bbls bbrg bggs bgst bibb bibi bibl bibo bibs bigb bigg bigo bigs bigt biis bili bill bilo bils bilt bio- biog bioi biol bios biot birb birg biri birl biro birr birs birt bis- bisl biso biss bist bito bits bitt blbt blio blir blis blit blls blob blog bloo blot blrg blss blst blts bobb bobi bobo bobs bogg bogi bogo bogs bogt boi- boii boil bois boit bolg boli boll bolo bols bolt boob boog bool boor boos boot bor- borg bori boro borr bors bort bosi boso boss bost botb boti boto bots bott brig bril brio bris brit brls brob brog brol broo bror bros brot brrr brrs brsb brsr brst bsgs bsos bsts btob btor btrt btss bttb gbbo gbbs ggbt gggg ggss gibb gibs gigg gigi gigo gigs giis gilg gili gill gilo gils gilt giog gioi girg giri girl giro girr girs girt giss gist gito gits gli- glib glis glit glob glog glor glos glot glrb glro gobi gobl gobo gobs gogi gogo gogs gois goit goli goll golo gols golt goog gooi gool goor goos goot gorb gorg gori goro gorr gors gort gosi goso goss gost goti gotl goto gots gott grbr grib grig gril gris grit grob grog groi grol groo gror gros grot grrl grrr grrs grss gsis gsli gsos gstr gtbr gtos i-go ibis ibos ibot ibri ibro ibss ibtb ibtl ibts igbo iggs igil igis igli iglo igoo igor igot igri igso iiii iiio iiis iiit iioi iioo iios iirs iisi iisr iist iitr iitt ilio ilir ilis ilit ill- illi illo ills illt ilog iloo ilos ilot ilts iobi iogt ioii ioio ioit iolo iooi iooo ioos iorg iori iors ioso ioto irgs iri- irig iril irio iris irlb irob irri irrs irsg irti irts isbl isbt isil isis isit isls iso- isol isor isos isrg isri issi isso issr isss isti isto istr ists itbs itgo itgs itil itis itll itoi itol itoo itor itos itri itrs itsi itso itto lbgt lblr lbos lbrs lbrt lgbt lgts libo libr libs ligg ligi ligo liig liii liir liis lilb lilg lili lill lilo lils lilt lio- lior lios lirg liri lirl liro lirr lirs lirt lisi liso liss list litb liti litl lito litr lits litt llbs llll lloo lob- lobb lobi lobo lobs log- logb logi logo logs loir lois loit loli loll lolo lols loob lool loor loos loot lori loro lors losi loso loss lost loti lotl loto lotr lots lott lrgb lroi lrrr lrst lrts ls-r lsso lssr lsts ltbl ltgs ltib ltrs ltsi ltsr lttr obbo obis obit obls oboi obol obor obos obot obri obro obsr obss obst obts ogb oggi ogli ogog ogoi ogri ogro ogsi oigo oiii oils oios oirt oist oiti olbo olgr olib olig olio olis olit olli ollo olog olor olos olot olsi olst oobi oolo