-ol b-p bbb bbf bbi bbl bbo bbp bbr bbt bfb bff bfi bfl bfo bfp bfr bft bi- bib bif bii bil bio bip bir bit blb blf bli bll blo blp blr blt bob bof boi bol boo bop bor bot bpb bpf bpi bpl bpo bpp bpr bpt brb brf bri brl bro brp brr brt btb btf bti btl bto btp btr btt fbb fbf fbi fbl fbo fbp fbr fbt fff ffi ffl ffo ffp ffr fft fib fif fii fil fip fir fit flb flf fli fll flo flp flr flt fob fof foi fol foo fop for fot fpb fpi fpl fpo fpp fpr fpt frb frf fri frl fro frp frr frt ftb ftf fti ftl fto ftp ftr ftt i-f ibb ibf ibi ibl ibo ibp ibr ibt ifb iff ifi ifl ifo ifp ifr ift iib iif iii iil iio iip iir iit il- ilb ilf ili ill ilo ilp ilr ilt io- iob iof ioi iol ioo iop ior iot ipb ipf ipi ipl ipo ipp ipr ipt ir- irb irf iri irl iro irp irr irt itb itf iti itl ito itp itt l-p lbb lbf lbi lbl lbo lbp lbr lbt lfb lff lfi lfl lfo lfp lfr lft lib lif lii lil lio lip lir lit llb llf lli lll llo llp llr llt lob lof loi lol loo lop lor lot lpb lpf lpi lpl lpo lpp lpr lpt lrb lrf lri lro lrp lrr lrt ltb ltf lti ltl lto ltp ltr ltt o-i ob- obb obf obi obl obo obp obr obt of- ofb off ofi ofl ofo ofp ofr oft oib oif oii oil oio oip oir oit olb olf oli oll olo olp olt oo- oob oof ooi ool ooo oop oor oot op- opb opf opi opl opo opp opr opt or- orb orf ori orl oro orp orr ort ot- otb otf oti otl oto otp otr ott p-p pbb pbf pbi pbl pbo pbp pbr pbt pfb pff pfi pfl pfo pfp pfr pft pib pif pii pil pio pip pir pit plb plf pli pll plo plp plr plt pob pof poi pol poo pop por pot ppb ppf ppi ppl ppo ppp ppr ppt prb prf pri prl pro prp prr prt pt- ptb ptf pti ptl pto ptp ptr ptt rbb rbf rbi rbl rbo rbp rbr rbt rfb rff rfi rfl rfo rfp rfr rft rib rif rii ril rio rip rir rit rlf rli rll rlo rlp rlr rlt rob rof roi rol roo rop ror rot rpb rpf rpi rpl rpo rpp rpr rpt rrb rrf rri rrl rrp rrr rrt rtb rtf rti rtl rto rtp rtr rtt tbb tbf tbi tbl tbo tbp tbr tbt tfb tff tfi tfl tfo tfp tfr tft tib tif tii til tio tip tir tit tlf tli tll tlo tlp tlr tlt to- tob tof toi tol too top tor tot tpb tpf tpi tpl tpo tpp tpr tpt trb trf tri trl tro trp trr trt ttb ttf tti ttl tto ttp ttr ttt