-ol ddd ddf ddl ddo ddr dds dfd dff dfl dfo dfr dfs dl- dld dlf dll dlo dlr dls dod dof dol doo dor dos drd drl dro drr drs dsd dsf dsl dso dsr dss fdd fdf fdl fdo fdr fds ffd fff ffl ffo ffr ffs fld flf fll flo flr fls fof fol foo for fos frd frf frl fro frr frs fsd fsf fsl fso fsr fss ldd ldf ldl ldo ldr lds lfd lff lfl lfo lfr lfs lld llf lll llo llr lls lod lof lol loo lor los lrd lrf lro lrr lrs lsd lsf lsl lso lsr lss odd odf odl odo odr ods of- ofd off ofl ofo ofr ofs old olf oll olo ols oo- ood oof ool ooo oor oos or- ord orf orl oro orr ors os- osd osf osl oso osr oss rdd rdf rdl rdo rdr rds rfd rff rfl rfo rfr rfs rld rlf rll rlo rlr rls rod rof rol roo ror ros rrd rrf rrl rrr rrs rsd rsf rsl rso rsr rss sdd sdf sdl sdo sdr sds sfd sff sfl sfo sfr sfs sld slf sll slo slr sls sod sof sol soo sor sos sr- srd srf srl sro srr srs ss- ssd ssf ssl sso ssr sss