-ol ddd ddl ddo ddp dds ddt dl- dld dll dlo dlp dls dlt dod dol doo dop dos dot dpd dpl dpo dpp dps dpt dsd dsl dso dsp dss dst dtd dtl dto dtp dts dtt l-p ldd ldl ldo ldp lds ldt lld lll llo llp lls llt lod lol loo lop los lot lpd lpl lpo lpp lps lpt lsd lsl lso lsp lss lst ltd ltl lto ltp lts ltt odd odl odo odp ods odt old oll olo olp ols olt oo- ood ool ooo oop oos oot op- opd opl opo opp ops opt os- osd osl oso osp oss ost ot- otd otl oto otp ots ott p-p pdd pdl pdo pdp pds pdt pld pll plo plp pls plt pod pol poo pop pos pot ppd ppl ppo ppp pps ppt ps- psd psl pso psp pss pst pt- ptd ptl pto ptp pts ptt sdd sdl sdo sdp sds sdt sld sll slo slp sls slt sod sol soo sop sos sot spd spl spo spp sps spt ss- ssd ssl sso ssp sss sst std stl sto stp sts stt tdd tdl tdo tdp tds tdt tld tll tlo tlp tls tlt to- tod tol too top tos tot tpd tpl tpo tpp tps tpt tsd tsl tso tsp tss tst ttd ttl tto ttp tts ttt