b-p bbb bbe bbl bbm bbp bbs bbt be- beb bee bel bem bep bes bet blb ble bll blm blp bls blt bmb bme bml bmm bmp bms bmt bpb bpe bpl bpm bpp bps bpt bsb bse bsl bsm bsp bss bst btb bte btl btm btp bts btt ebb ebe ebl ebm ebp ebs ebt eeb eee eel eem eep ees eet elb ele ell elm elp els elt em- emb eme eml emm emp ems emt ep- epb epe epl epm epp eps ept es- esb ese esl esm esp ess est etb ete etl etm etp ets ett l-p lbb lbe lbl lbm lbp lbs lbt leb lee lel lem lep les let llb lle lll llm llp lls llt lmb lme lml lmm lmp lms lmt lpb lpe lpl lpm lpp lps lpt lsb lse lsl lsm lsp lss lst ltb lte ltl ltm ltp lts ltt mbb mbe mbl mbm mbp mbs mbt meb mee mel mem mep mes met mlb mle mll mlm mlp mls mlt mmb mme mml mmm mmp mms mmt mpb mpe mpl mpm mpp mps mpt msb mse msl msm msp mss mst mtb mte mtl mtm mtp mts mtt p-p pbb pbe pbl pbm pbp pbs pbt peb pee pel pem pep pes pet plb ple pll plm plp pls plt pmb pme pml pmm pmp pms pmt ppb ppe ppl ppm ppp pps ppt ps- psb pse psl psm psp pss pst pt- ptb pte ptl ptm ptp pts ptt sbb sbe sbl sbm sbp sbs sbt se- seb see sel sem sep ses set slb sle sll slm slp sls slt smb sme sml smm smp sms smt spb spe spl spm spp sps spt ss- ssb sse ssl ssm ssp sss sst stb ste stl stm stp sts stt tbb tbe tbl tbm tbp tbs tbt te- teb tee tel tem tep tes tet tle tll tlm tlp tls tlt tmb tme tml tmm tmp tms tmt tpb tpe tpl tpm tpp tps tpt tsb tse tsl tsm tsp tss tst ttb tte ttl ttm ttp tts ttt