-er b-p bbb bbe bbi bbl bbp bbr bbs bbx be- beb bee bei bel bep ber bes bex bi- bib bie bii bil bip bir bis bix blb ble bli bll blp blr bls blx bpb bpe bpi bpl bpp bpr bps bpx brb bre bri brl brp brr brs brx bsb bse bsi bsl bsp bsr bss bsx bxb bxi bxl bxx ebb ebe ebi ebl ebp ebr ebs ebx eeb eee eel eep eer ees eex eib eie eii eil eip eir eis eix elb ele eli ell elp elr els elx ep- epb epe epi epl epp epr eps epx erb ere eri erl erp err ers es- esb ese esi esl esp esr ess esx ex- exe exi exl exp exr exs exx ibb ibe ibi ibl ibp ibr ibs ibx ie- iee iei iel iep ier ies iex iib iie iii iil iip iir iis iix il- ilb ile ili ill ilp ilr ils ilx ipb ipe ipi ipl ipp ipr ips ipx ir- irb ire iri irl irp irr irs irx is- isb ise isi isl isp isr iss ixe ixi ixl l-p lbb lbe lbi lbl lbp lbr lbs lbx leb lee lei lel lep ler les lex lib lie lii lil lip lir lis lix llb lle lli lll llp llr lls lpb lpe lpi lpl lpp lpr lps lpx lrb lri lrp lrr lrs lsb lse lsi lsl lsp lsr lss lxi lxr lxx p-p pbb pbe pbi pbl pbp pbr pbs pbx peb pee pei pel pep per pes pex pib pie pii pil pip pir pis pix plb ple pli pll plp plr pls plx ppb ppe ppi ppl ppp ppr pps ppx prb pre pri prl prp prr prs prx ps- psb pse psi psl psp psr pss psx pxe pxl pxr pxs rbb rbe rbi rbl rbp rbr rbs rbx re- reb ree rei rel rep rer res rex rib rie rii ril rip rir ris rix rle rli rll rlp rlr rls rpb rpe rpi rpl rpp rpr rps rpx rrb rri rrl rrp rrr rrs rsb rse rsi rsl rsp rsr rss rsx rxp rxr rxs sbb sbe sbi sbl sbp sbr sbs sbx se- seb see sei sel sep ser ses sex sib sie sii sil sip sir sis six slb sle sli sll slp slr sls slx spb spe spi spl spp spr sps spx sr- srb sre sri srl srp srr srs srx ss- ssb sse ssi ssl ssp ssr sss ssx sxi sxl sxs xbe xbl xbr xbx xee xel xep xer xes xex xie xii xis xix xlb xli xlr xls xpb xpe xpl xpp xps xrx xsb xsi xsl xsp xss xxi xxl xxp xxx

bbbb bbbs bbeb bblb bbls bbpr bebb bebe bebi beeb beel beep beer bees beil beir beis bele beli bell belp bels bere beri berr bers bes- bese bess bibb bibe bibi bibl bibs bieb biel bier bies biis bile bili bill bils bipp bips birb bire biri birl birr birs birx bis- bise bisl bisp biss bixi bleb blee blei bles blip blir blis blix blls blsp blss bpel breb bree brei brel brep brer bres brex brie bril bris brix brlp brls brrr brrs brsb brsr bseb bsee bser bses bsix bspp bspr bsse ebbr ebbs ebel eber ebes ebis ebix ebli eeee eees eele eels eeps eers eese eesi eiei eier eies eile eipr eire eirs eise eiss el-b el-p elbe elbi elee eler eles elex elie elil elis elix elle elli ells elpe elpi else epee eper epes epi- epie epil epip epis epix eple epll eppp epps eprb eprp eprs epsi epsp epss epsx epxp er-x erbb erbe ereb erei erel erer eres erie eril eris erle erli erll erpe erps erre errs erse ersi esbs esee esel eser eses esie esil esis esli eslp espe espi espp esps esri esse essi essl essp exel exer exes exis expr exrx i-be ibes ibex ibie ibis ible ibri ibss ieie iele iels iere ieri iers iesi iesr iies iiie iiii iiis iirs iisi iisp iisr ilbx ile- iler iles ilex ilie ilir ilis ill- ille illi illp ills ilpe ilpr ilre ilse ilxx iper ipes ipex ipie ipil ipix ippr ipri ipse ipsi ipsp ipss ipxe irbe irbp iree irel irer ires irex iri- irie iril irip iris irix irlb irpe irps irre irri irrs irse irsp isbe isbl isbx iseb isee isel isep iser ises isie isil isis isle isls ispe ispr isps isri isrp isse issi issp issr isss ixil ixxi lblr lbrs leel leep leer lees leib leie leil leir leis leix lele leli lell lepe lepi lepp leps lere lerp lese less lexi lexx libe libr libs libx lieb liel liep lier lies liii liir liis lilb lile lili lill lils lip- lipb lipe lipi lipl lipp lips lire liri lirl lirp lirr lirs lise lisi lisp liss lixi llbs lles llll llps lppl lprp lpss lrps lrrr lrse ls-r lses lspl lspr lssp lssr lxii lxis lxxi lxxx pbil pbrs pbsp pebl peel peep peer pees peil peip peir peis pel- pelb pele pell pels pepe pepi peps per- pere peri perl perp perr pers pese pesi pess pibb pibi piel piep pier pies piip pil- pile pili pill pils pipe pipi pipp pips pire piri pirl pirr pirs pise pisi piss pixl pixx plbr ple- pleb plee plei ples plex plib plie plip plis plpp plri plsi plss pper ppib ppie pple ppli pppp ppps ppss prbs pre- preb pree prel prep pres prex pri- prie prii pris prix prle prlr prls prps prri prrs prse prsi prsl prss psbr pseb psei psel psil psip psis pspi pspp pspr psps psrp psse pxes rbbb rbbr rbbs rbis rble rbsl rbsp rbss rebb rebe rebs reeb reel reep rees reii reil reir reis relb rele rell relp rels repe repi repl repp repr reps rere reri rers rese resi resp ress rexx rib- ribe