-ol b-p bbb bbf bbi bbl bbo bbp bbr bbs bbt bfb bff bfi bfl bfo bfp bfr bfs bft bi- bib bif bii bil bio bip bir bis bit blb blf bli bll blo blp blr bls blt bob bof boi bol boo bop bor bos bot bpb bpf bpi bpl bpo bpp bpr bps bpt brb brf bri brl bro brp brr brs brt bsb bsf bsi bsl bso bsp bsr bss bst btb btf bti btl bto btp btr bts btt fbb fbf fbi fbl fbo fbp fbr fbs fbt fff ffi ffl ffo ffp ffr ffs fft fib fif fii fil fip fir fis fit flb flf fli fll flo flp flr fls flt fob fof foi fol foo fop for fos fot fpb fpi fpl fpo fpp fpr fps fpt frb frf fri frl fro frp frr frs frt fsb fsf fsi fsl fso fsp fsr fss fst ftb ftf fti ftl fto ftp ftr fts ftt i-f ibb ibf ibi ibl ibo ibp ibr ibs ibt ifb iff ifi ifl ifo ifp ifr ifs ift iib iif iii iil iio iip iir iis iit il- ilb ilf ili ill ilo ilp ilr ils ilt io- iob iof ioi iol ioo iop ior ios iot ipb ipf ipi ipl ipo ipp ipr ips ipt ir- irb irf iri irl iro irp irr irs irt is- isb isf isi isl iso isp isr iss ist itb itf iti itl ito itp its itt l-p lbb lbf lbi lbl lbo lbp lbr lbs lbt lfb lff lfi lfl lfo lfp lfr lfs lft lib lif lii lil lio lip lir lis lit llb llf lli lll llo llp llr lls llt lob lof loi lol loo lop lor los lot lpb lpf lpi lpl lpo lpp lpr lps lpt lrb lrf lri lro lrp lrr lrs lrt lsb lsf lsi lsl lso lsp lsr lss lst ltb ltf lti ltl lto ltp ltr lts ltt o-i ob- obb obf obi obl obo obp obr obs obt of- ofb off ofi ofl ofo ofp ofr ofs oft oib oif oii oil oio oip oir ois oit olb olf oli oll olo olp ols olt oo- oob oof ooi ool ooo oop oor oos oot op- opb opf opi opl opo opp opr ops opt or- orb orf ori orl oro orp orr ors ort os- osb osf osi osl oso osp osr oss ost ot- otb otf oti otl oto otp otr ots ott p-p pbb pbf pbi pbl pbo pbp pbr pbs pbt pfb pff pfi pfl pfo pfp pfr pfs pft pib pif pii pil pio pip pir pis pit plb plf pli pll plo plp plr pls plt pob pof poi pol poo pop por pos pot ppb ppf ppi ppl ppo ppp ppr pps ppt prb prf pri prl pro prp prr prs prt ps- psb psf psi psl pso psp psr pss pst pt- ptb ptf pti ptl pto ptp ptr pts ptt rbb rbf rbi rbl rbo rbp rbr rbs rbt rfb rff rfi rfl rfo rfp rfr rfs rft rib rif rii ril rio rip rir ris rit rlf rli rll rlo rlp rlr rls rlt rob rof roi rol roo rop ror ros rot rpb rpf rpi rpl rpo rpp rpr rps rpt rrb rrf rri rrl rrp rrr rrs rrt rsb rsf rsi rsl rso rsp rsr rss rst rtb rtf rti rtl rto rtp rtr rts rtt sbb sbf sbi sbl sbo sbp sbr sbs sbt sfb sff sfi sfl sfo sfp sfr sfs sft sib sif sii sil sio sip sir sis sit slb slf sli sll slo slp slr sls slt sob sof soi sol soo sop sor sos sot spb spf spi spl spo spp spr sps spt sr- srb srf sri srl sro srp srr srs srt ss- ssb ssf ssi ssl sso ssp ssr sss sst stb stf sti stl sto stp str sts stt tbb tbf tbi tbl tbo tbp tbr tbs tbt tfb tff tfi tfl tfo tfp tfr tfs tft tib tif tii til tio tip tir tis tit tlf tli tll tlo tlp tlr tls tlt to- tob tof toi tol too top tor tos tot tpb tpf tpi tpl tpo tpp tpr tps tpt trb trf tri trl tro trp trr trs trt tsb tsf tsi tsl tso tsp tsr tss tst ttb ttf tti ttl tto ttp ttr tts ttt