-er -ol -up ddd dde ddl ddo ddp ddr ddu de- ded dee del deo dep der deu dev dl- dld dle dll dlo dlp dlr dlu dlv dod doe dol doo dop dor dou dov dpd dpe dpl dpo dpp dpr dpu dpv drd dre drl dro drp drr dru drv dud due dul duo dup dur duv dvd dve dvl dvp dvr dvu ed- edd ede edl edo edp edr edu eed eee eel eeo eep eer eev eld ele ell elo elp elr elu elv eo- eod eoe eol eoo eop eor eou ep- epd epe epl epo epp epr epu erd ere erl ero erp err eru erv eu- eud eue eul eup eur euv evd eve evl evo evp evr evv l-p ldd lde ldl ldo ldp ldr ldu ldv led lee lel leo lep ler leu lev lld lle lll llo llp llr llu llv lod loe lol loo lop lor lou lov lpd lpe lpl lpo lpp lpr lpu lpv lrd lro lrp lrr lru lrv lud lue lul luo lup lur luu luv lvd lve lvl lvp lvr lvv odd ode odl odo odp odr odu odv oed oee oel oeo oep oer old ole oll olo olp olu oo- ood ool ooo oop oor oov op- opd ope opl opo opp opr opv or- ord ore orl oro orp orr oru orv ou- oud oue oul ouo oup our ov- ovd ove ovl ovo ovp ovv p-p pdd pde pdl pdo pdp pdr pdu pdv ped pee pel peo pep per peu pev pld ple pll plo plp plr plu plv pod poe pol poo pop por pou pov ppd ppe ppl ppo ppp ppr ppu ppv prd pre prl pro prp prr pru prv pud pue pul pup pur puu pvd pve pvl pvo pvp pvr pvu pvv rdd rde rdl rdo rdp rdr rdu rdv re- red ree rel reo rep rer reu rev rld rle rll rlo rlp rlr rlu rod roe rol roo rop ror rou rov rpd rpe rpl rpo rpp rpr rpu rpv rrd rrl rrp rrr rru rud rue ruo rup rur ruu ruv rvd rve rvl rvo rvp rvr rvu rvv udd ude udl udo udp udr udu udv ued uee uel uep uer uld ule ull ulo ulp ulr ulu ulv uod uoe uol uoo uop uor up- upd upe upo upp upr upu upv ur- urd ure url uro urp urr uru uue uur uuu uve uvl uvo uvu uvv v-e vdd vde vdl vdo vdp vdr vdu vdv ved vee vel veo vep ver veu vl- vld vle vll vlo vlp vlv vod voe vol voo vop vor vou vov vpd vpe vpl vpo vpp vpr vpu vrd vre vrp vrr vru vue vul vup vur vuv vvo vvr vvv