-er b-p bbb bbd bbe bbi bbp bbr bbs bdb bdd bde bdi bdp bdr bds be- beb bed bee bei bep ber bes bi- bib bid bie bii bip bir bis bpb bpd bpe bpi bpp bpr bps brb brd bre bri brp brr brs bsb bsd bse bsi bsp bsr bss dbb dbd dbe dbi dbp dbr dbs ddb ddd dde ddi ddp ddr dds de- deb ded dee dei dep der des di- dib did die dii dip dir dis dpb dpd dpe dpi dpp dpr dps drb drd dre dri drp drr drs dsb dsd dse dsi dsp dsr dss ebb ebd ebe ebi ebp ebr ebs ed- edb edd ede edi edp edr eds eeb eed eee eep eer ees eib eid eie eii eip eir eis ep- epb epd epe epi epp epr eps erb erd ere eri erp err ers es- esb esd ese esi esp esr ess i-d ibb ibd ibe ibi ibp ibr ibs idb idd ide idi idp idr ids ie- ied iee iei iep ier ies iib iid iie iii iip iir iis ipb ipd ipe ipi ipp ipr ips ir- irb ird ire iri irp irr irs is- isb isd ise isi isp isr iss p-p pbb pbd pbe pbi pbp pbr pbs pdb pdd pde pdi pdp pdr pds peb ped pee pei pep per pes pib pid pie pii pip pir pis ppb ppd ppe ppi ppp ppr pps prb prd pre pri prp prr prs ps- psb psd pse psi psp psr pss rbb rbd rbe rbi rbp rbr rbs rdb rdd rde rdi rdp rdr rds re- reb red ree rei rep rer res rib rid rie rii rip rir ris rpb rpd rpe rpi rpp rpr rps rrb rrd rri rrp rrr rrs rsb rsd rse rsi rsp rsr rss sbb sbd sbe sbi sbp sbr sbs sdb sdd sde sdi sdp sdr sds se- seb sed see sei sep ser ses sib sid sie sii sip sir sis spb spd spe spi spp spr sps sr- srb srd sre sri srp srr srs ss- ssb ssd sse ssi ssp ssr sss

bbbb bbbs bbdd bbeb bbpr bd-r bdes bdii bdsd bebb bebe bebi bede bedi beds beeb beed beep beer bees beir beis berd bere beri berr bers bes- bese bess bibb bibe bibi bibs bide bidi bidr bids bieb bied bier bies biis bipp bips birb bird bire biri birr birs bis- bisd bise bisp biss bprd brds breb bred bree brei brep brer bres brid brie bris brrr brrs brsb brsr bsbd bseb bsed bsee bser bses bspp bspr bsrd bssd bsse dbpd dbrs dbss dddd ddes ddie ddps ddre ddss debe debi debs dedd dede dedi deeb deed deep deer dees deid deie deip deir deis depe depp depr deps der- derb dere deri derp derr ders des- dese desi desp dess dibb dibe dibp dibs dide didi dids dieb died diep dier dies diii diis dipe dipp dips dird dire dirr dirs dis- disd dise disi disp diss dper dpie dpsd dred dree drei dres drib drie drip drrs drsp dsdp dsdr dsei dsip dsps dsri dsrp dsrr dssi dssp ebbr ebbs ebed eber ebes ebid ebis edde eddi eddp edds ede- edei eder edes edie edip edis edss eede eeee eees eeps eers eese eesi eid- eide eidi eidr eied eiei eier eies eipr eird eire eirs eisd eise eiss epee eper epes epi- epid epie epip epis eppp epps eprb eprp eprs epsd epsi epsp epss erbb erbe erde erdi erds ereb ered erei erer eres erie eris erpe erps erre errs erse ersi esbs esdi esdp esds esee eser eses esie esis espe espi espp esps esrd esri esse essi essp i-be ibed ibes ibid ibie ibis ibrd ibri ibss idbe ided idee ider ides idid idie idir idis idps idre idse idss iedr ieds ieie iere ieri iers iesi iesr iide iied iies iiie iiii iiis iirs iisd iisi iisp iisr ipdi iper ipes ipid ipie ippr ipri ipse ipsi ipsp ipss irbe irbp irdp irds ired iree irer ires iri- irid irie irip iris irpe irps irre irri irrs irse irsp isbd isbe isdb isde isds iseb ised isee isep iser ises isie isis ispe ispr isps isri isrp isse issi issp issr isss pbed pbrs pbsp pdbs pdes pdpr pdrs pdsd pdss ped- pede pedi peds peed peep peer pees peip peir peis pepd pepe pepi peps per- perd pere peri perp perr pers pese pesi pess pibb pibi pide pids pied piep pier pies piip pipe pipi pipp pips pire piri pirr pirs pisd pise pisi piss ppds pper ppib ppid ppie pppd pppp ppps ppss prbs pre- preb pred pree prep pres pri- prid prie prii pris prpd prps prrd prri prrs prsd prse prsi prss psbd psbr psdi psdp psdr psds pseb psei psid psip psis pspi pspp pspr psps psrd psrp psse rbbb rbbr rbbs rbds rbis rbsd rbsp rbss rdbp rder rebb rebe rebs redd rede redi redr reds reeb reed reep rees reid reii reir reis repe repi repp repr reps rerd rere reri rers rese resi resp ress rib- ribe ribs ridd ride ridi rids ried riep rier ries riis ripd ripe ripi ripp ripr rips rire riri rirs risd rise risi risp riss rpdp rpii rpps rred rrrr rrsp rsbi rsdd rsds rsee rsid rsis rspb rsps rsre s-ib s-ii sbbs sbds sber sbsd sbse sbsi sbsp sdds sdep sder sdes sdib sdpr sdps sdrs sdss se-d se-e se-i se-s sebe sebi sebs sede seds seeb seed seep seer sees seid seie seii seip seir seis sepd sepe sepi sepp sepr seps serb serd sere seri serp serr sers sese sesi sess sibe sibi sibs sidd side sidi sidr sids sied sier sies sipe sipi sipp sips sire siri sirp sirr sirs sisd sise sisi siss spde spdp spdr speb sped spee sper spes spib spie spip spir spis sppd spps sprd spri sprs