bbb bbf bbi bbm bbo bbr bbt bfb bff bfi bfm bfo bfr bft bi- bib bif bii bim bio bir bit bmb bmf bmi bmm bmo bmr bmt bob bof boi bom boo bor bot brb brf bri brm bro brr brt btb btf bti btm bto btr btt fbb fbf fbi fbm fbo fbr fbt fff ffi ffm ffo ffr fft fib fif fii fim fir fit fmb fmf fmi fmm fmo fmr fmt fob fof foi fom foo for fot frb frf fri frm fro frr frt ftb ftf fti ftm fto ftr ftt i-f ibb ibf ibi ibm ibo ibr ibt ifb iff ifi ifm ifo ifr ift iib iif iii iim iio iir iit im- imb imf imi imm imo imt io- iob iof ioi iom ioo ior iot ir- irb irf iri irm iro irr irt itb itf iti itm ito itt m-f m-o m-r mbb mbf mbi mbm mbo mbr mbt mfb mff mfi mfm mfo mfr mft mi- mib mif mii mim mio mir mit mmb mmf mmi mmm mmo mmr mmt mob mof moi mom moo mor mot mrb mrf mri mrm mro mrr mrt mtb mtf mti mtm mto mtr mtt o-i ob- obb obf obi obm obo obr obt of- ofb off ofi ofm ofo ofr oft oib oif oii oim oio oir oit om- omb omf omi omm omo omr omt oo- oob oof ooi oom ooo oor oot or- orb orf ori orm oro orr ort ot- otb otf oti otm oto otr ott rbb rbf rbi rbm rbo rbr rbt rfb rff rfi rfm rfo rfr rft rib rif rii rim rio rir rit rmb rmf rmi rmm rmo rmr rmt rob rof roi rom roo ror rot rrb rrf rri rrm rrr rrt rtb rtf rti rtm rto rtr rtt tbb tbf tbi tbm tbo tbr tbt tfb tff tfi tfm tfo tfr tft tib tif tii tim tio tir tit tmb tmf tmi tmm tmo tmr tmt to- tob tof toi tom too tor tot trb trf tri trm tro trr trt ttb ttf tti ttm tto ttr ttt