ddd dde ddo ddp ddq dds de- ded dee deo dep deq des dod doe doo dop doq dos dpd dpe dpo dpp dps dqe dqs dsd dse dso dsp dsq dss ed- edd ede edo edp eds eed eee eeo eep ees eo- eod eoe eoo eop eoq eos ep- epd epe epo epp epq eps eqe eqp eqq eqs es- esd ese eso esp esq ess odd ode odo odp ods oed oee oeo oep oes oo- ood ooo oop oos op- opd ope opo opp opq ops oqo os- osd ose oso osp osq oss p-p pdd pde pdo pdp pdq pds ped pee peo pep pes pod poe poo pop pos ppd ppe ppo ppp ppq pps pqq pqs ps- psd pse pso psp pss qds qed qee qeo qep qoo qop qos qpp qps qqq qsd qso qsp sdd sde sdo sdp sdq sds se- sed see seo sep seq ses sod soe soo sop soq sos spd spe spo spp spq sps sqd sqq sqs ss- ssd sse sso ssp ssq sss