-er -up ddd dde ddf ddn ddo ddp ddr dds ddu de- ded dee def den deo dep der des deu dfd dfe dff dfn dfo dfp dfr dfs dfu dnd dne dnf dnn dno dnp dnr dns dod doe dof don doo dop dor dos dou dpd dpe dpf dpn dpo dpp dpr dps dpu drd dre drn dro drp drr drs dru dsd dse dsf dsn dso dsp dsr dss dsu dud due duf dun duo dup dur dus ed- edd ede edf edn edo edp edr eds edu eed eee eef een eeo eep eer ees ef- efd efe eff efo efp efr efs en- end ene enf enn eno enp enr ens enu eo- eod eoe eof eon eoo eop eor eos eou ep- epd epe epf epn epo epp epr eps epu erd ere erf ern ero erp err ers eru es- esd ese esf esn eso esp esr ess esu eu- eud eue euf eun eup eur eus fdd fde fdf fdn fdo fdp fdr fds fdu fed fee fef fen feo fep fer fes feu ffd ffe fff ffn ffo ffp ffr ffs ffu fnd fne fnf fnn fnp fnr fns fnu foe fof fon foo fop for fos fou fpd fpe fpn fpo fpp fpr fps fpu frd fre frf frn fro frp frr frs fru fsd fse fsf fsn fso fsp fsr fss fsu fud fue fuf fun fuo fup fur fus fuu ndd nde ndf ndn ndo ndp ndr nds ndu ne- ned nee nef nen neo nep ner nes neu nfd nfe nff nfn nfo nfp nfr nfs nfu nne nnf nnn nno nnp nns nnu no- nod noe nof non noo nop nor nos nou npd npe npf npn npo npp npr nps npu nrd nre nrf nrn nro nrp nrr nrs nru nsd nse nsf nsn nso nsp nsr nss nsu nud nue nun nuo nup nur nus nuu odd ode odf odn odo odp odr ods odu oed oee oef oen oeo oep oer oes of- ofd ofe off ofn ofo ofp ofr ofs ofu on- ond one onf onn ono onp onr ons onu oo- ood oof oon ooo oop oor oos op- opd ope opf opn opo opp opr ops or- ord ore orf orn oro orp orr ors oru os- osd ose osf osn oso osp osr oss osu ou- oud oue ouf oun ouo oup our ous p-p pdd pde pdf pdn pdo pdp pdr pds pdu ped pee pef pen peo pep per pes peu pfd pfe pff pfn pfo pfp pfr pfs pfu pn- pnd pne pnf pnn pno pnp pnr pns pnu pod poe pof pon poo pop por pos pou ppd ppe ppf ppn ppo ppp ppr pps ppu prd pre prf prn pro prp prr prs pru ps- psd pse psf psn pso psp psr pss psu pud pue puf pun pup pur pus puu rdd rde rdf rdn rdo rdp rdr rds rdu re- red ree ref ren reo rep rer res reu rfd rfe rff rfn rfo rfp rfr rfs rfu rnd rnn rno rnp rnr rns rnu rod roe rof ron roo rop ror ros rou rpd rpe rpf rpn rpo rpp rpr rps rpu rrd rrf rrn rrp rrr rrs rru rsd rse rsf rsn rso rsp rsr rss rsu rud rue ruf run ruo rup rur rus ruu sdd sde sdf sdn sdo sdp sdr sds sdu se- sed see sef sen seo sep ser ses seu sfd sfe sff sfn sfo sfp sfr sfs sfu snd sne snf snn sno snp snr sns snu sod soe sof son soo sop sor sos sou spd spe spf spn spo spp spr sps spu sr- srd sre srf srn sro srp srr srs ss- ssd sse ssf ssn sso ssp ssr sss ssu sud sue suf sun suo sup sur sus suu udd ude udf udn udo udp udr uds udu ued uee uef uen uep uer ues ufd ufe uff ufn ufo ufp ufr ufs ufu un- und une unf unn uno unp unr uns unu uod uoe uon uoo uop uor uos up- upd upe upf upn upo upp upr ups upu ur- urd ure urf urn uro urp urr urs uru usd use usf usn uso usp usr uss usu uue uun uur uus uuu