sesc sese seso sess sfar sfas sfca sfcc sfco sfcs sfer sffc sfla sflc sfls sfne sfor sfos sfra sfrc sfro sfss skac skaf skal skan skar skee skel sken skeo sker skes skfc skn- skoe skol skon skor skra skss slaa slac slae slaf slak slan slas slcc slea slee sler sles slln sloc sloe slon sloo slos slrc slre slrn slrs slsa slsc snak snar snas snca sncc sncf snco snee snel sner snes snla snlf snns snoa snoc snoo snor snos snra snrk snrs soak soal soan soar soas soca soce sock socl soco socr socs soea soec soel soen soeo soes sofa sofo soka soke sokk sokn soko sola sole solf solk soll soln solo solr sols son- sona sone sonk sono sons soof sook sool soon soor soos sora sore sorn soro sorr sors sosa sose soso soss sraf sras srcc srec sreo sres srfc srna srnn srno sros ssaa ssac ssan ssao ssas ssca sscc ssce sscs ssec ssee sses ssfc ssfl ssla sslc ssle ssns ssoc ssra ssrc ssrl ssrs sssa sssc sssf ssss