ddd ddf ddg ddi dds ddt dfd dff dfg dfi dfs dft dgd dgf dgg dgi dgs dgt di- did dif dig dii dis dit dsd dsf dsg dsi dss dst dtd dtf dtg dti dts dtt fdd fdf fdg fdi fds fdt ffd fff ffg ffi ffs fft fgd fgf fgg fgi fgs fgt fid fif fig fii fis fit fsd fsf fsg fsi fss fst ftd ftf ftg fti fts ftt g-d gdd gdf gdi gds gdt gfd gff gfi gfs gft ggd ggg ggi ggs ggt gid gif gig gii gis git gsd gsf gsg gsi gss gst gtd gtf gtg gti gts gtt i-d i-f idd idf idg idi ids idt ifd iff ifg ifi ifs ift igd igf igg igi igs igt iid iif iii iis iit is- isd isf isg isi iss ist itd itf itg iti its itt sdd sdf sdg sdi sds sdt sfd sff sfg sfi sfs sft sgd sgf sgg sgi sgs sgt sid sif sig sii sis sit ss- ssd ssf ssg ssi sss sst std stf stg sti sts stt tdd tdf tdg tdi tds tdt tfd tff tfg tfi tfs tft tgf tgg tgi tgs tgt tid tif tig tii tis tit tsd tsf tsg tsi tss tst ttd ttf ttg tti tts ttt