bbb bbg bbi bbk bbn bbo bbr bbt bgb bgg bgi bgk bgn bgo bgr bgt bi- bib big bii bik bin bio bir bit bkb bkg bkk bkn bko bkr bkt bnb bng bni bnk bnn bno bnr bnt bob bog boi bok bon boo bor bot brb brg bri brk brn bro brr brt btb btg bti btk btn bto btr btt gbg gbi gbk gbn gbo gbr gbt ggb ggg ggi ggn ggo ggr ggt gib gig gii gik gin gio gir git gkb gkn gko gkt gnb gni gnn gno gnr gnt gob gog goi gok gon goo gor got grb grg gri grk grn gro grr grt gtb gtg gti gtk gtn gto gtr gtt ibb ibg ibi ibk ibn ibo ibr ibt igb igg igi igk ign igo igr igt iib iii iin iio iir iit ikb iki ikk iko ikr ikt in- inb ing ini ink inn ino inr int io- iob iog ioi ion ioo ior iot ir- irb irg iri irk irn iro irr irt itb itg iti itk itn ito itt k-t kbb kbi kbk kbn kbo kbr kgb kgi kgo kib kig kii kik kin kio kir kit kkb kki kkk kkn kkr kkt kn- kng kni knk knn kno knr knt kob kog koi kok kon koo kor kot krg kri krk krn kro krr krt ktb ktg ktk ktn kto ktr ktt n-i nbb nbg nbi nbk nbn nbo nbr nbt ngb ngg ngi ngk ngn ngo ngt nib nig nii nik nin nio nir nit nki nkk nkn nko nkr nkt nnb nng nni nnk nnn nno nnt no- nob nog noi nok non noo nor not nrb nrg nri nrk nrn nro nrr nrt ntb ntg nti ntk ntn nto ntr ntt o-i ob- obb obg obi obk obn obo obr obt ogg ogi ogn ogo ogt oib oii oik oin oio oir oit okb okg oki okk oko okr on- onb ong oni onk onn ono onr ont oo- oob oog ooi ook oon ooo oor oot or- orb org ori ork orn oro orr ort ot- otb otg oti otk otn oto otr ott rbb rbg rbi rbk rbn rbo rbr rbt rgb rgg rgi rgk rgn rgo rgr rgt rib rig rii rik rin rio rir rit rkb rkg rkk rko rkt rnb rng rni rnn rno rnr rnt rob rog roi rok ron roo ror rot rrb rrg rri rrk rrn rrr rrt rtb rtg rti rtk rtn rto rtr rtt tbb tbg tbi tbk tbn tbo tbr tbt tgb tgg tgi tgk tgn tgo tgr tgt tib tig tii tik tin tio tir tit tkb tkg tkk tko tkr tkt tnb tng tni tnk tnn tno tnr tnt to- tob tog toi tok ton too tor tot trb trg tri trk trn tro trr trt ttb ttg tti ttk ttn tto ttr ttt