-er -ol -up ddd dde ddl ddo ddp ddr dds ddu de- ded dee del deo dep der des deu dl- dld dle dll dlo dlp dlr dls dlu dod doe dol doo dop dor dos dou dpd dpe dpl dpo dpp dpr dps dpu drd dre drl dro drp drr drs dru dsd dse dsl dso dsp dsr dss dsu dud due dul duo dup dur dus ed- edd ede edl edo edp edr eds edu eed eee eel eeo eep eer ees eld ele ell elo elp elr els elu eo- eod eoe eol eoo eop eor eos eou ep- epd epe epl epo epp epr eps epu erd ere erl ero erp err ers eru es- esd ese esl eso esp esr ess esu eu- eud eue eul eup eur eus l-p ldd lde ldl ldo ldp ldr lds ldu led lee lel leo lep ler les leu lld lle lll llo llp llr lls llu lod loe lol loo lop lor los lou lpd lpe lpl lpo lpp lpr lps lpu lrd lro lrp lrr lrs lru lsd lse lsl lso lsp lsr lss lsu lud lue lul luo lup lur lus luu odd ode odl odo odp odr ods odu oed oee oel oeo oep oer oes old ole oll olo olp ols olu oo- ood ool ooo oop oor oos op- opd ope opl opo opp opr ops or- ord ore orl oro orp orr ors oru os- osd ose osl oso osp osr oss osu ou- oud oue oul ouo oup our ous p-p pdd pde pdl pdo pdp pdr pds pdu ped pee pel peo pep per pes peu pld ple pll plo plp plr pls plu pod poe pol poo pop por pos pou ppd ppe ppl ppo ppp ppr pps ppu prd pre prl pro prp prr prs pru ps- psd pse psl pso psp psr pss psu pud pue pul pup pur pus puu rdd rde rdl rdo rdp rdr rds rdu re- red ree rel reo rep rer res reu rld rle rll rlo rlp rlr rls rlu rod roe rol roo rop ror ros rou rpd rpe rpl rpo rpp rpr rps rpu rrd rrl rrp rrr rrs rru rsd rse rsl rso rsp rsr rss rsu rud rue ruo rup rur rus ruu sdd sde sdl sdo sdp sdr sds sdu se- sed see sel seo sep ser ses seu sld sle sll slo slp slr sls slu sod soe sol soo sop sor sos sou spd spe spl spo spp spr sps spu sr- srd sre srl sro srp srr srs ss- ssd sse ssl sso ssp ssr sss ssu sud sue sul suo sup sur sus suu udd ude udl udo udp udr uds udu ued uee uel uep uer ues uld ule ull ulo ulp ulr uls ulu uod uoe uol uoo uop uor uos up- upd upe upo upp upr ups upu ur- urd ure url uro urp urr urs uru usd use usl uso usp usr uss usu uue uur uus uuu