-er -up ddd dde ddi ddo ddp ddr dds ddu de- ded dee dei deo dep der des deu dev di- did die dii dio dip dir dis diu div dod doe doi doo dop dor dos dou dov dpd dpe dpi dpo dpp dpr dps dpu dpv drd dre dri dro drp drr drs dru drv dsd dse dsi dso dsp dsr dss dsu dsv dud due dui duo dup dur dus duv dvd dve dvi dvp dvr dvs dvu ed- edd ede edi edo edp edr eds edu eed eee eeo eep eer ees eev eid eie eii eio eip eir eis eiu eiv eo- eod eoe eoi eoo eop eor eos eou ep- epd epe epi epo epp epr eps epu erd ere eri ero erp err ers eru erv es- esd ese esi eso esp esr ess esu esv eu- eud eue eui eup eur eus euv evd eve evi evo evp evr evs evv i-d i-v idd ide idi ido idp idr ids idu idv ie- ied iee iei iep ier ies iev iid iie iii iio iip iir iis iiu io- iod ioe ioi ioo iop ior ios iou iov ipd ipe ipi ipo ipp ipr ips ipu ipv ir- ird ire iri iro irp irr irs iru irv is- isd ise isi iso isp isr iss isu isv iu- iud iue iui iup iur ius ivd ive ivi ivo ivp ivr ivs ivu ivv o-i odd ode odi odo odp odr ods odu odv oed oee oei oeo oep oer oes oid oie oii oio oip oir ois oiu oiv oo- ood ooi ooo oop oor oos oov op- opd ope opi opo opp opr ops opv or- ord ore ori oro orp orr ors oru orv os- osd ose osi oso osp osr oss osu osv ou- oud oue oui ouo oup our ous ov- ovd ove ovi ovo ovp ovs ovv p-p pdd pde pdi pdo pdp pdr pds pdu pdv ped pee pei peo pep per pes peu pev pid pie pii pio pip pir pis piu piv pod poe poi poo pop por pos pou pov ppd ppe ppi ppo ppp ppr pps ppu ppv prd pre pri pro prp prr prs pru prv ps- psd pse psi pso psp psr pss psu psv pud pue pui pup pur pus puu pvd pve pvi pvo pvp pvr pvs pvu pvv rdd rde rdi rdo rdp rdr rds rdu rdv re- red ree rei reo rep rer res reu rev rid rie rii rio rip rir ris riv rod roe roi roo rop ror ros rou rov rpd rpe rpi rpo rpp rpr rps rpu rpv rrd rri rrp rrr rrs rru rsd rse rsi rso rsp rsr rss rsu rsv rud rue rui ruo rup rur rus ruu ruv rvd rve rvi rvo rvp rvr rvs rvu rvv sdd sde sdi sdo sdp sdr sds sdu sdv se- sed see sei seo sep ser ses seu sev sid sie sii sio sip sir sis siu siv sod soe soi soo sop sor sos sou sov spd spe spi spo spp spr sps spu spv sr- srd sre sri sro srp srr srs srv ss- ssd sse ssi sso ssp ssr sss ssu ssv sud sue sui suo sup sur sus suu suv svd sve svi svo svp svr svs svu svv udd ude udi udo udp udr uds udu udv ued uee uei uep uer ues uid uie uii uio uip uir uis uiu uod uoe uoo uop uor uos up- upd upe upi upo upp upr ups upu upv ur- urd ure uri uro urp urr urs uru usd use usi uso usp usr uss usu usv uue uur uus uuu uve uvo uvs uvu uvv v-e vdd vde vdi vdo vdp vdr vds vdu vdv ved vee vei veo vep ver ves veu vi- vid vie vii vio vip vir vis viu viv vod voe voi voo vop vor vos vou vov vpd vpe vpi vpo vpp vpr vps vpu vrd vre vri vrp vrr vrs vru vsd vse vsi vso vsp vsr vss vsu vsv vue vup vur vus vuv vvi vvo vvr vvs vvv