fff ffo ffr ffs fof foo for fos frf fro frr frs fsf fso fsr fss of- off ofo ofr ofs oo- oof ooo oor oos or- orf oro orr ors os- osf oso osr oss rff rfo rfr rfs rof roo ror ros rrf rrr rrs rsf rso rsr rss sff sfo sfr sfs sof soo sor sos sr- srf sro srr srs ss- ssf sso ssr sss

ffff ffrr ffss fofo foof foos for- foro forr fors foso foss fros frso fsfo fssf off- offo offr offs ofor ooff oofs oooo ooos orff orfs oro- orof oror oros orro orrs orso osoo osor osos osro osso roff rofo roof roor roos roro roso ross rrrr rsos s-os sfor sfos sfro sfss sofo soof soor soos soro sorr sors soso soss sros ssrs sssf ssss

fofos foros forro forso forss offof ooooo orfor oroso ososo ossos ro-ro rofor roofs rosso rosss rsssf s-o-r so-so soror soros sorso soss- sroof sssss

foofoo forros fosso oooooo rofors soosoo sorors sorsor sssfrs

foo-foo fossors off-off sorfors sssssss