-er b-p bbb bbe bbm bbo bbp bbr bbt bbx be- beb bee bem beo bep ber bet bex bmb bme bmm bmo bmp bmr bmt bmx bob boe bom boo bop bor bot box bpb bpe bpm bpo bpp bpr bpt bpx brb bre brm bro brp brr brt brx btb bte btm bto btp btr btt btx bxb bxm bxo bxx ebb ebe ebm ebo ebp ebr ebt ebx eeb eee eem eeo eep eer eet eex em- emb eme emm emo emp emr emt emx eo- eob eoe eom eoo eop eor eot ep- epb epe epm epo epp epr ept epx erb ere erm ero erp err ert etb ete etm eto etp etr ett etx ex- exe exo exp exr ext exx m-o m-r mbb mbe mbm mbo mbp mbr mbt mbx meb mee mem meo mep mer met mex mmb mme mmm mmo mmp mmr mmt mmx mob moe mom moo mop mor mot mox mpb mpe mpm mpo mpp mpr mpt mpx mrb mre mrm mro mrp mrr mrt mrx mtb mte mtm mto mtp mtr mtt mtx mxp mxr ob- obb obe obm obo obp obr obt obx oeb oee oem oeo oep oer oet oex om- omb ome omm omo omp omr omt omx oo- oob oom ooo oop oor oot oox op- opb ope opm opo opp opr opt opx or- orb ore orm oro orp orr ort orx ot- otb ote otm oto otp otr ott ox- oxb oxo oxt oxx p-p pbb pbe pbm pbo pbp pbr pbt pbx peb pee pem peo pep per pet pex pmb pme pmm pmo pmp pmr pmt pmx pob poe pom poo pop por pot pox ppb ppe ppm ppo ppp ppr ppt ppx prb pre prm pro prp prr prt prx pt- ptb pte ptm pto ptp ptr ptt ptx pxe pxm pxr pxt rbb rbe rbm rbo rbp rbr rbt rbx re- reb ree rem reo rep rer ret rex rmb rme rmm rmo rmp rmr rmt rmx rob roe rom roo rop ror rot rox rpb rpe rpm rpo rpp rpr rpt rpx rrb rrm rrp rrr rrt rtb rte rtm rto rtp rtr rtt rtx rxp rxr t-x tbb tbe tbm tbo tbp tbr tbt te- teb tee tem teo tep ter tet tex tmb tme tmm tmo tmp tmr tmt tmx to- tob toe tom too top tor tot tox tpb tpe tpm tpo tpp tpr tpt tpx trb tre trm tro trp trr trt trx ttb tte ttm tto ttp ttr ttt ttx txe txt xbe xbr xbx xee xem xep xer xet xex xmm xmo xmp xmr xmt xmx xom xoo xop xor xot xox xpb xpe xpm xpo xpp xpt xrt xrx xtm xtp xtr xtx xxo xxp xxx

bbbb bbeb bbet bbox bbpr bebb bebe bebo beeb beem beep beer beet beme beo- beor beot bepo bere berm bero berr bert bete beto bett bmep bmop bmpt bobb bobe bobo boee boeo boep boer boet bomb bome bomp bomt boob booe boom boop boor boot boox bope bopp bor- bore borm boro borr bort botb bote boto bott bpoe bpot breb bree brem breo brep brer bret brex brob broe brom broo bror brot brox brrm brrr btbp btex btob btor btrt bttb ebbo ebbr eber eboe eboo ebor ebox ebpo ebro eeee eemo eero eete eext embe embo embr emer emet emex emme emor empe empt emre emte emtp eore eoto epbm epee eper epmo epor epot epox eppo eppp eprb epro eprp epte epxp er-x erbb erbe ereb erem erer eret erme ermo erob eroe eroo erpe erre erro etbr etee etem eter etoe etox etre etrm etro ette etto exer exmr exo- exor expm expo expr expt exrx exte extr mbox mebe mebo meem meep meer meet meme memo memr memx meor mepe mer- merb mere merm mero merp mert met- mete meto mett mexx mmmm mmor mmpr mmrp mmxx mobb mobe mobo moet moex mome momo moob mooe moop moor moot mope mopp morb more moro mort motb mote motm moto mott moxe moxo mppe mppp mpro mprp mptp mrbb mrbm mreb mree mrtm mrtt mtbo mtep mtoe mtom mtor mtre mtrr mttr mxpx o-eo obbo ober obet obex oboe obor obot obox obre obro oeme oere oerm ombe ombo omee omeo omer omet omex omo- omoe omoo omor omox ompt omre omro oobe ooer oome oooo oore oort ootb ootp opep oper opet opex opo- opor oppo opto orbb orbe orbo ore- oreb orem oreo orer orex orme ormo oro- oroe orom oror orot orpe orro orte orto otee otem otep oter oto- otoe otoo otor otpp otre otro otte otto oxep oxer oxo- oxox oxxo pbmr peep peer peet pemt peor pepe pepo per- pere perm pero perp perr pert pete peto petr pett pmbr pmmp pmpm pmpo pmrt pobo poem poer poet pome pomo pomp poop poor poot pop- pope popo popp popt porb pore poro porr port pote poto pott pper pppo pppp pprm pptt pre- preb pree prem prep pret prex pro- prob proe prom proo prop prot prox prrm prtm prtp prtr pter ptmp ptop ptox rbbb rbbr rbmx rebb rebe rebo reeb reem reep reet reme remo remp reop reot repe repo repp repr rept rere rero rert rete reto retr rett rexx rmrp rob- robb robe robo robt roer roet romb rome romm romo romp roob room roop roor root roox rope ropo rore roro rort rote roto rotr rott roxo rpet rpob rpoe rrmp rrrr rtee rtex rtmp rttp t-mo tbox tbrb tbtp tebo teem teer teet teme temo temp teom teor tepe tepp ter- tere term tero terp terr tete teto tetr tett tetx text tmbr tmep tmro tmtt tobe tobo tobt toee toer toet tomb tome tomm tomo tomp tomt toom toor toot top- tope topo topp topt tore torm toro torp torr tort torx tote totm toto totr tott tox- toxo toxt tper tpmt tppp tppr