b-p bbb bbf bbi bbl bbp bbs bbt bfb bff bfi bfl bfp bfs bft bi- bib bif bii bil bip bis bit blb blf bli bll blp bls blt bpb bpf bpi bpl bpp bps bpt bsb bsf bsi bsl bsp bss bst btb btf bti btl btp bts btt fbb fbf fbi fbl fbp fbs fbt fff ffi ffl ffp ffs fft fib fif fii fil fip fis fit flb flf fli fll flp fls flt fpb fpi fpl fpp fps fpt fsb fsf fsi fsl fsp fss fst ftb ftf fti ftl ftp fts ftt i-f ibb ibf ibi ibl ibp ibs ibt ifb iff ifi ifl ifp ifs ift iib iif iii iil iip iis iit il- ilb ilf ili ill ilp ils ilt ipb ipf ipi ipl ipp ips ipt is- isb isf isi isl isp iss ist itb itf iti itl itp its itt l-p lbb lbf lbi lbl lbp lbs lbt lfb lff lfi lfl lfp lfs lft lib lif lii lil lip lis lit llb llf lli lll llp lls llt lpb lpf lpi lpl lpp lps lpt lsb lsf lsi lsl lsp lss lst ltb ltf lti ltl ltp lts ltt p-p pbb pbf pbi pbl pbp pbs pbt pfb pff pfi pfl pfp pfs pft pib pif pii pil pip pis pit plb plf pli pll plp pls plt ppb ppf ppi ppl ppp pps ppt ps- psb psf psi psl psp pss pst pt- ptb ptf pti ptl ptp pts ptt sbb sbf sbi sbl sbp sbs sbt sfb sff sfi sfl sfp sfs sft sib sif sii sil sip sis sit slb slf sli sll slp sls slt spb spf spi spl spp sps spt ss- ssb ssf ssi ssl ssp sss sst stb stf sti stl stp sts stt tbb tbf tbi tbl tbp tbs tbt tfb tff tfi tfl tfp tfs tft tib tif tii til tip tis tit tlf tli tll tlp tls tlt tpb tpf tpi tpl tpp tps tpt tsb tsf tsi tsl tsp tss tst ttb ttf tti ttl ttp tts ttt