-up ddd dde ddo ddp dds ddu de- ded dee deo dep des deu dod doe doo dop dos dou dpd dpe dpo dpp dps dpu dsd dse dso dsp dss dsu dud due duo dup dus ed- edd ede edo edp eds edu eed eee eeo eep ees eo- eod eoe eoo eop eos eou ep- epd epe epo epp eps epu es- esd ese eso esp ess esu eu- eud eue eup eus odd ode odo odp ods odu oed oee oeo oep oes oo- ood ooo oop oos op- opd ope opo opp ops os- osd ose oso osp oss osu ou- oud oue ouo oup ous p-p pdd pde pdo pdp pds pdu ped pee peo pep pes peu pod poe poo pop pos pou ppd ppe ppo ppp pps ppu ps- psd pse pso psp pss psu pud pue pup pus puu sdd sde sdo sdp sds sdu se- sed see seo sep ses seu sod soe soo sop sos sou spd spe spo spp sps spu ss- ssd sse sso ssp sss ssu sud sue suo sup sus suu udd ude udo udp uds udu ued uee uep ues uod uoe uoo uop uos up- upd upe upo upp ups upu usd use uso usp uss usu uue uus uuu