-ol ddd ddf ddl ddo ddr dds ddt dfd dff dfl dfo dfr dfs dft dl- dld dlf dll dlo dlr dls dlt dod dof dol doo dor dos dot drd drl dro drr drs drt dsd dsf dsl dso dsr dss dst dtd dtf dtl dto dtr dts dtt fdd fdf fdl fdo fdr fds fdt ffd fff ffl ffo ffr ffs fft fld flf fll flo flr fls flt fof fol foo for fos fot frd frf frl fro frr frs frt fsd fsf fsl fso fsr fss fst ftd ftf ftl fto ftr fts ftt ldd ldf ldl ldo ldr lds ldt lfd lff lfl lfo lfr lfs lft lld llf lll llo llr lls llt lod lof lol loo lor los lot lrd lrf lro lrr lrs lrt lsd lsf lsl lso lsr lss lst ltd ltf ltl lto ltr lts ltt odd odf odl odo odr ods odt of- ofd off ofl ofo ofr ofs oft old olf oll olo ols olt oo- ood oof ool ooo oor oos oot or- ord orf orl oro orr ors ort os- osd osf osl oso osr oss ost ot- otd otf otl oto otr ots ott rdd rdf rdl rdo rdr rds rdt rfd rff rfl rfo rfr rfs rft rld rlf rll rlo rlr rls rlt rod rof rol roo ror ros rot rrd rrf rrl rrr rrs rrt rsd rsf rsl rso rsr rss rst rtd rtf rtl rto rtr rts rtt sdd sdf sdl sdo sdr sds sdt sfd sff sfl sfo sfr sfs sft sld slf sll slo slr sls slt sod sof sol soo sor sos sot sr- srd srf srl sro srr srs srt ss- ssd ssf ssl sso ssr sss sst std stf stl sto str sts stt tdd tdf tdl tdo tdr tds tdt tfd tff tfl tfo tfr tfs tft tld tlf tll tlo tlr tls tlt to- tod tof tol too tor tos tot trd trf trl tro trr trs trt tsd tsf tsl tso tsr tss tst ttd ttf ttl tto ttr tts ttt