-er -up ddd dde ddi ddp ddr dds ddu de- ded dee dei dep der des deu dev di- did die dii dip dir dis diu div dpd dpe dpi dpp dpr dps dpu dpv drd dre dri drp drr drs dru drv dsd dse dsi dsp dsr dss dsu dsv dud due dui dup dur dus duv dvd dve dvi dvp dvr dvs dvu ed- edd ede edi edp edr eds edu eed eee eep eer ees eev eid eie eii eip eir eis eiu eiv ep- epd epe epi epp epr eps epu erd ere eri erp err ers eru erv es- esd ese esi esp esr ess esu esv eu- eud eue eui eup eur eus euv evd eve evi evp evr evs evv i-d i-v idd ide idi idp idr ids idu idv ie- ied iee iei iep ier ies iev iid iie iii iip iir iis iiu ipd ipe ipi ipp ipr ips ipu ipv ir- ird ire iri irp irr irs iru irv is- isd ise isi isp isr iss isu isv iu- iud iue iui iup iur ius ivd ive ivi ivp ivr ivs ivu ivv p-p pdd pde pdi pdp pdr pds pdu pdv ped pee pei pep per pes peu pev pid pie pii pip pir pis piu piv ppd ppe ppi ppp ppr pps ppu ppv prd pre pri prp prr prs pru prv ps- psd pse psi psp psr pss psu psv pud pue pui pup pur pus puu pvd pve pvi pvp pvr pvs pvu pvv rdd rde rdi rdp rdr rds rdu rdv re- red ree rei rep rer res reu rev rid rie rii rip rir ris riv rpd rpe rpi rpp rpr rps rpu rpv rrd rri rrp rrr rrs rru rsd rse rsi rsp rsr rss rsu rsv rud rue rui rup rur rus ruu ruv rvd rve rvi rvp rvr rvs rvu rvv sdd sde sdi sdp sdr sds sdu sdv se- sed see sei sep ser ses seu sev sid sie sii sip sir sis siu siv spd spe spi spp spr sps spu spv sr- srd sre sri srp srr srs srv ss- ssd sse ssi ssp ssr sss ssu ssv sud sue sui sup sur sus suu suv svd sve svi svp svr svs svu svv udd ude udi udp udr uds udu udv ued uee uei uep uer ues uid uie uii uip uir uis uiu up- upd upe upi upp upr ups upu upv ur- urd ure uri urp urr urs uru usd use usi usp usr uss usu usv uue uur uus uuu uve uvs uvu uvv v-e vdd vde vdi vdp vdr vds vdu vdv ved vee vei vep ver ves veu vi- vid vie vii vip vir vis viu viv vpd vpe vpi vpp vpr vps vpu vrd vre vri vrp vrr vrs vru vsd vse vsi vsp vsr vss vsu vsv vue vup vur vus vuv vvi vvr vvs vvv