ddd ddf ddi ddo ddr dds ddt dfd dff dfi dfo dfr dfs dft di- did dif dii dio dir dis dit dod dof doi doo dor dos dot drd dri dro drr drs drt dsd dsf dsi dso dsr dss dst dtd dtf dti dto dtr dts dtt fdd fdf fdi fdo fdr fds fdt ffd fff ffi ffo ffr ffs fft fid fif fii fir fis fit fof foi foo for fos fot frd frf fri fro frr frs frt fsd fsf fsi fso fsr fss fst ftd ftf fti fto ftr fts ftt i-d i-f idd idf idi ido idr ids idt ifd iff ifi ifo ifr ifs ift iid iif iii iio iir iis iit io- iod iof ioi ioo ior ios iot ir- ird irf iri iro irr irs irt is- isd isf isi iso isr iss ist itd itf iti ito its itt o-i odd odf odi odo odr ods odt of- ofd off ofi ofo ofr ofs oft oid oif oii oio oir ois oit oo- ood oof ooi ooo oor oos oot or- ord orf ori oro orr ors ort os- osd osf osi oso osr oss ost ot- otd otf oti oto otr ots ott rdd rdf rdi rdo rdr rds rdt rfd rff rfi rfo rfr rfs rft rid rif rii rio rir ris rit rod rof roi roo ror ros rot rrd rrf rri rrr rrs rrt rsd rsf rsi rso rsr rss rst rtd rtf rti rto rtr rts rtt sdd sdf sdi sdo sdr sds sdt sfd sff sfi sfo sfr sfs sft sid sif sii sio sir sis sit sod sof soi soo sor sos sot sr- srd srf sri sro srr srs srt ss- ssd ssf ssi sso ssr sss sst std stf sti sto str sts stt tdd tdf tdi tdo tdr tds tdt tfd tff tfi tfo tfr tfs tft tid tif tii tio tir tis tit to- tod tof toi too tor tos tot trd trf tri tro trr trs trt tsd tsf tsi tso tsr tss tst ttd ttf tti tto ttr tts ttt