-er -up b-p b-u bbb bbe bbl bbm bbp bbr bbt bbu bbx be- beb bee bel bem bep ber bet beu bex blb ble bll blm blp blr blt blu blx bmb bme bml bmm bmp bmr bmt bmu bmx bpb bpe bpl bpm bpp bpr bpt bpu bpx brb bre brl brm brp brr brt bru brx btb bte btl btm btp btr btt btu btx bub bue bul bum bup bur but buu bux bxb bxl bxm bxx ebb ebe ebl ebm ebp ebr ebt ebu ebx eeb eee eel eem eep eer eet eex elb ele ell elm elp elr elt elu elx em- emb eme eml emm emp emr emt emu emx ep- epb epe epl epm epp epr ept epu epx erb ere erl erm erp err ert eru etb ete etl etm etp etr ett etu etx eu- eub eue eul eup eur eut eux ex- exe exl exp exr ext exu exx l-p lbb lbe lbl lbm lbp lbr lbt lbu lbx leb lee lel lem lep ler let leu lex llb lle lll llm llp llr llt llu lmb lme lml lmm lmp lmr lmt lmu lpb lpe lpl lpm lpp lpr lpt lpu lpx lrb lrm lrp lrr lrt lru ltb lte ltl ltm ltp ltr ltt ltu ltx lub lue lul lum lup lur lut luu lux lxr lxx m-r mbb mbe mbl mbm mbp mbr mbt mbu mbx meb mee mel mem mep mer met meu mex mlb mle mll mlm mlp mlr mlt mlu mlx mmb mme mml mmm mmp mmr mmt mmu mmx mpb mpe mpl mpm mpp mpr mpt mpu mpx mrb mre mrl mrm mrp mrr mrt mru mrx mtb mte mtl mtm mtp mtr mtt mtu mtx mub mue mul mum mup mur mut muu mux mxl mxp mxr mxu p-p pbb pbe pbl pbm pbp pbr pbt pbu pbx peb pee pel pem pep per pet peu pex plb ple pll plm plp plr plt plu plx pmb pme pml pmm pmp pmr pmt pmu pmx ppb ppe ppl ppm ppp ppr ppt ppu ppx prb pre prl prm prp prr prt pru prx pt- ptb pte ptl ptm ptp ptr ptt ptu ptx pub pue pul pum pup pur put puu pxe pxl pxm pxr pxt rbb rbe rbl rbm rbp rbr rbt rbu rbx re- reb ree rel rem rep rer ret reu rex rle rll rlm rlp rlr rlt rlu rmb rme rml rmm rmp rmr rmt rmx rpb rpe rpl rpm rpp rpr rpt rpu rpx rrb rrl rrm rrp rrr rrt rru rtb rte rtl rtm rtp rtr rtt rtu rtx rub rue rum rup rur rut ruu rux rxp rxr t-x tbb tbe tbl tbm tbp tbr tbt tbu te- teb tee tel tem tep ter tet teu tex tle tll tlm tlp tlr tlt tlu tlx tmb tme tml tmm tmp tmr tmt tmu tmx tpb tpe tpl tpm tpp tpr tpt tpu tpx trb tre trl trm trp trr trt tru trx ttb tte ttl ttm ttp ttr ttt ttu ttx tub tue tul tum tup tur tut tuu tux txe txl txt txu ubb ube ubl ubp ubr ubt ubu ubx ueb uee uel uem uep uer uet ulb ule ull ulm ulp ulr ult ulu um- umb ume uml umm ump umr umt umu up- upb upe upm upp upr upt upu upx ur- urb ure url urm urp urr urt uru urx utb ute utl utm utp utr utt utu utx uue uum uur uut uuu uxb uxr uxt uxu xbe xbl xbr xbx xee xel xem xep xer xet xeu xex xlb xlm xlr xlt xml xmm xmp xmr xmt xmu xmx xpb xpe xpl xpm xpp xpt xrt xrx xtm xtp xtr xtx xue xul xup xxl xxp xxx