-ol bbb bbg bbi bbl bbn bbo bbr bbt bgb bgg bgi bgl bgn bgo bgr bgt bi- bib big bii bil bin bio bir bit blb blg bli bll bln blo blr blt bnb bng bni bnl bnn bno bnr bnt bob bog boi bol bon boo bor bot brb brg bri brl brn bro brr brt btb btg bti btl btn bto btr btt gbg gbi gbl gbn gbo gbr gbt ggb ggg ggi ggn ggo ggr ggt gib gig gii gil gin gio gir git glb glg gli gll gln glo glr glt gnb gni gnl gnn gno gnr gnt gob gog goi gol gon goo gor got grb grg gri grl grn gro grr grt gtb gtg gti gtl gtn gto gtr gtt ibb ibg ibi ibl ibn ibo ibr ibt igb igg igi igl ign igo igr igt iib iii iil iin iio iir iit il- ilb ilg ili ill iln ilo ilr ilt in- inb ing ini inl inn ino inr int io- iob iog ioi iol ion ioo ior iot ir- irb irg iri irl irn iro irr irt itb itg iti itl itn ito itt lbb lbg lbi lbl lbo lbr lbt lgb lgg lgi lgl lgn lgo lgr lgt lib lig lii lil lin lio lir lit llb llg lli lll lln llo llr llt lnb lng lni lnl lnn lno lnr lnt lob log loi lol lon loo lor lot lrb lrg lri lrn lro lrr lrt ltb ltg lti ltl lto ltr ltt n-i nbb nbg nbi nbl nbn nbo nbr nbt ngb ngg ngi ngl ngn ngo ngt nib nig nii nil nin nio nir nit nlb nlg nli nll nln nlo nlr nlt nnb nng nni nnl nnn nno nnt no- nob nog noi nol non noo nor not nrb nrg nri nrl nrn nro nrr nrt ntb ntg nti ntn nto ntr ntt o-i ob- obb obg obi obl obn obo obr obt ogg ogi ogl ogn ogo ogt oib oii oil oin oio oir oit olb olg oli oll oln olo olt on- onb ong oni onl onn ono onr ont oo- oob oog ooi ool oon ooo oor oot or- orb org ori orl orn oro orr ort ot- otb otg oti otl otn oto otr ott rbb rbg rbi rbl rbn rbo rbr rbt rgb rgg rgi rgn rgo rgr rgt rib rig rii ril rin rio rir rit rlg rli rll rln rlo rlr rlt rnb rng rni rnn rno rnr rnt rob rog roi rol ron roo ror rot rrb rrg rri rrl rrn rrr rrt rtb rtg rti rtl rtn rto rtr rtt tbb tbg tbi tbl tbn tbo tbr tbt tgb tgg tgi tgl tgn tgo tgr tgt tib tig tii til tin tio tir tit tlg tli tll tln tlo tlr tlt tnb tng tni tnl tnn tno tnr tnt to- tob tog toi tol ton too tor tot trb trg tri trl trn tro trr trt ttb ttg tti ttl ttn tto ttr ttt