-er -up b-p b-u bbb bbd bbe bbn bbp bbr bbt bbu bdb bdd bde bdp bdr bdt bdu be- beb bed bee ben bep ber bet beu bnb bnd bne bnn bnp bnr bnt bnu bpb bpd bpe bpn bpp bpr bpt bpu brb brd bre brn brp brr brt bru btb btd bte btn btp btr btt btu bub bud bue bun bup bur but buu dbb dbd dbe dbn dbp dbr dbt dbu ddb ddd dde ddn ddp ddr ddt ddu de- deb ded dee den dep der det deu dnb dnd dne dnn dnp dnr dnt dpb dpd dpe dpn dpp dpr dpt dpu drb drd dre drn drp drr drt dru dtb dtd dte dtn dtp dtr dtt dtu dub dud due dun dup dur dut ebb ebd ebe ebn ebp ebr ebt ebu ed- edb edd ede edn edp edr edt edu eeb eed eee een eep eer eet en- enb end ene enn enp enr ent enu ep- epb epd epe epn epp epr ept epu erb erd ere ern erp err ert eru etb etd ete etn etp etr ett etu eu- eub eud eue eun eup eur eut nbb nbd nbe nbn nbp nbr nbt nbu ndb ndd nde ndn ndp ndr ndt ndu ne- neb ned nee nen nep ner net neu nnb nne nnn nnp nnt nnu npb npd npe npn npp npr npt npu nrb nrd nre nrn nrp nrr nrt nru ntb ntd nte ntn ntp ntr ntt ntu nub nud nue nun nup nur nut nuu p-p pbb pbd pbe pbn pbp pbr pbt pbu pdb pdd pde pdn pdp pdr pdt pdu peb ped pee pen pep per pet peu pn- pnb pnd pne pnn pnp pnr pnt pnu ppb ppd ppe ppn ppp ppr ppt ppu prb prd pre prn prp prr prt pru pt- ptb ptd pte ptn ptp ptr ptt ptu pub pud pue pun pup pur put puu rbb rbd rbe rbn rbp rbr rbt rbu rdb rdd rde rdn rdp rdr rdt rdu re- reb red ree ren rep rer ret reu rnb rnd rnn rnp rnr rnt rnu rpb rpd rpe rpn rpp rpr rpt rpu rrb rrd rrn rrp rrr rrt rru rtb rtd rte rtn rtp rtr rtt rtu rub rud rue run rup rur rut ruu tbb tbd tbe tbn tbp tbr tbt tbu tdb tdd tde tdn tdp tdr tdt tdu te- teb ted tee ten tep ter tet teu tnb tnd tne tnn tnp tnr tnt tpb tpd tpe tpn tpp tpr tpt tpu trb trd tre trn trp trr trt tru ttb ttd tte ttn ttp ttr ttt ttu tub tud tue tun tup tur tut tuu ubb ube ubn ubp ubr ubt ubu udb udd ude udn udp udr udt udu ueb ued uee uen uep uer uet un- unb und une unn unp unr unt unu up- upb upd upe upn upp upr upt upu ur- urb urd ure urn urp urr urt uru utb utd ute utn utp utr utt utu uue uun uur uut uuu

-ene bbbb bbdd bbeb bbet bbpr bd-r bebb bebe bede bedu beeb beed been beep beer beet bend bene benn bent benu berd bere bern berr bert beru bete bett betu beur bner bnet bnpp bnrr bprd brdt breb bred bree bren brep brer bret brrr brud brue brun brup brut btbp btdt bten btrt bttb bubb bube bubu budb budd bude budu buen buer bueu bunb bund bune bunn bunt bunu bur- burb burd bure burn burp burr burt buru but- bute butt dbpd dbrn dbtt dddd ddre ddub debe debt debu dedd dede dedu deeb deed deen deep deer deet dene denn dent denu depe depp depr dept der- derb dere dern derp derr dete detn detr deue deur deut dner dnet dntp dntt dnut dpdt dper dred dree dren dret drub drue drup drut druu dtdp dted dten dtnb dttp dub- dubb dube dubu dudd dude dudu duer duet dune dunn dunt dupe dure durn durt duru dute dutp duur duut ebbr ebed eben eber ebru ebur edde eddp ede- eden eder edrn edru edun edup edur eede eedu eeee eend eent eete eetu enb- enbn enbr end- ende endu ened enee ener enne ennu enp- ent- entd ente entp entr enue enur enut epee epen eper eppp eprb eprp epte epub erbb erbe erde ereb ered eren erer eret erne erpe erre ertu erub erur etbr etee eten eter etne etnr etre ette ettn ettu etun eude euer eur- eure eurt n-up nber nbpp nddb ndde nder ndnp ndnt ndpd ndpr ndre ndut nebb nebe nebn nebr nebu nedd nede nedu neeb need neen neep neer neet nend nene nent nenu nepe nepr nept nerd nere nerr nert neru net- netb netd nete nett neue neun neur neut neuu nndb nnnn nnpr nntn nppd nprt npte nptn nren nrpn nrrd nter nteu ntnd ntnu ntpd ntru nttr nube nudd nude nuee nuer nune nunn nunt nupe nurd nure nurn nurp nurr nurt nuru nute nutt nutu pbed pdpn pdpr ped- pede peed peen peep peer peet pen- pend pene penn pent penu pepd pepe per- perd pere pern perp perr pert peru pete petn petr pett peun peur peut pnet pneu pnpp pntd pntr pnup ppen pper pppd pppn pppp ppru pptn pptt ppur pre- preb pred pree pren prep pret preu prnd prnp prpd prrd prtp prtr prud prue prut pruu pten pter ptpd ptrd pu-e pube pubu pudu pued puer puet pueu pund pune punt punu pupe pupu pur- purb pure purp purr puru put- pute putt putu rbbb rbbr rdbp rder rebb rebe rebu redd rede redr redu reeb reed reen reep reet rend rene renn rent renu repe repp repr rept repu rerd rere rert reru retd rete retr rett reue reup reut reuu rnbr rndp rnnt rntd rntp rnut rpdp rpet rppn rptd rptn rred rrrr rrun rtdt rtee rtnd rttp rubb rube rubp rubu