-er -ol ddd dde ddi ddl ddo ddp ddr dds de- ded dee dei del deo dep der des dev di- did die dii dil dio dip dir dis div dl- dld dle dli dll dlo dlp dlr dls dlv dod doe doi dol doo dop dor dos dov dpd dpe dpi dpl dpo dpp dpr dps dpv drd dre dri drl dro drp drr drs drv dsd dse dsi dsl dso dsp dsr dss dsv dvd dve dvi dvl dvp dvr dvs ed- edd ede edi edl edo edp edr eds eed eee eel eeo eep eer ees eev eid eie eii eil eio eip eir eis eiv eld ele eli ell elo elp elr els elv eo- eod eoe eoi eol eoo eop eor eos ep- epd epe epi epl epo epp epr eps erd ere eri erl ero erp err ers erv es- esd ese esi esl eso esp esr ess esv evd eve evi evl evo evp evr evs evv i-d i-v idd ide idi idl ido idp idr ids idv ie- ied iee iei iel iep ier ies iev iid iie iii iil iio iip iir iis il- ild ile ili ill ilo ilp ilr ils ilv io- iod ioe ioi iol ioo iop ior ios iov ipd ipe ipi ipl ipo ipp ipr ips ipv ir- ird ire iri irl iro irp irr irs irv is- isd ise isi isl iso isp isr iss isv ivd ive ivi ivl ivo ivp ivr ivs ivv l-p ldd lde ldi ldl ldo ldp ldr lds ldv led lee lei lel leo lep ler les lev lid lie lii lil lio lip lir lis liv lld lle lli lll llo llp llr lls llv lod loe loi lol loo lop lor los lov lpd lpe lpi lpl lpo lpp lpr lps lpv lrd lri lro lrp lrr lrs lrv lsd lse lsi lsl lso lsp lsr lss lsv lvd lve lvi lvl lvp lvr lvs lvv o-i odd ode odi odl odo odp odr ods odv oed oee oei oel oeo oep oer oes oid oie oii oil oio oip oir ois oiv old ole oli oll olo olp ols oo- ood ooi ool ooo oop oor oos oov op- opd ope opi opl opo opp opr ops opv or- ord ore ori orl oro orp orr ors orv os- osd ose osi osl oso osp osr oss osv ov- ovd ove ovi ovl ovo ovp ovs ovv p-p pdd pde pdi pdl pdo pdp pdr pds pdv ped pee pei pel peo pep per pes pev pid pie pii pil pio pip pir pis piv pld ple pli pll plo plp plr pls plv pod poe poi pol poo pop por pos pov ppd ppe ppi ppl ppo ppp ppr pps ppv prd pre pri prl pro prp prr prs prv ps- psd pse psi psl pso psp psr pss psv pvd pve pvi pvl pvo pvp pvr pvs pvv rdd rde rdi rdl rdo rdp rdr rds rdv re- red ree rei rel reo rep rer res rev rid rie rii ril rio rip rir ris riv rld rle rli rll rlo rlp rlr rls rod roe roi rol roo rop ror ros rov rpd rpe rpi rpl rpo rpp rpr rps rpv rrd rri rrl rrp rrr rrs rsd rse rsi rsl rso rsp rsr rss rsv rvd rve rvi rvl rvo rvp rvr rvs rvv sdd sde sdi sdl sdo sdp sdr sds sdv se- sed see sei sel seo sep ser ses sev sid sie sii sil sio sip sir sis siv sld sle sli sll slo slp slr sls slv sod soe soi sol soo sop sor sos sov spd spe spi spl spo spp spr sps spv sr- srd sre sri srl sro srp srr srs srv ss- ssd sse ssi ssl sso ssp ssr sss ssv svd sve svi svl svo svp svr svs svv v-e vdd vde vdi vdl vdo vdp vdr vds vdv ved vee vei vel veo vep ver ves vi- vid vie vii vil vio vip vir vis viv vl- vld vle vll vlo vlp vls vlv vod voe voi vol voo vop vor vos vov vpd vpe vpi vpl vpo vpp vpr vps vrd vre vri vrp vrr vrs vsd vse vsi vsl vso vsp vsr vss vsv vvi vvo vvr vvs vvv