ddd ddg ddo ddp dds ddt dgd dgg dgp dgs dgt dod dog doo dop dos dot dpd dpg dpo dpp dps dpt dsd dsg dso dsp dss dst dtd dtg dto dtp dts dtt g-d g-p gdd gdo gdp gds gdt ggd ggg ggo ggp ggs ggt god gog goo gop gos got gpd gpg gpo gpp gps gpt gsd gsg gso gsp gss gst gtd gtg gto gtp gts gtt odd odg odo odp ods odt ogd ogg ogo ogp ogs ogt oo- ood oog ooo oop oos oot op- opd opg opo opp ops opt os- osd osg oso osp oss ost ot- otd otg oto otp ots ott p-p pdd pdg pdo pdp pds pdt pgd pgg pgo pgp pgs pgt pod pog poo pop pos pot ppd ppg ppo ppp pps ppt ps- psd psg pso psp pss pst pt- ptd ptg pto ptp pts ptt sdd sdg sdo sdp sds sdt sgd sgg sgo sgp sgs sgt sod sog soo sop sos sot spd spg spo spp sps spt ss- ssd ssg sso ssp sss sst std stg sto stp sts stt tdd tdg tdo tdp tds tdt tgg tgo tgp tgs tgt to- tod tog too top tos tot tpd tpg tpo tpp tps tpt tsd tsg tso tsp tss tst ttd ttg tto ttp tts ttt