scma scmc scmm scmo scms scom scoo scsa scsc scsi scso sfas sfca sfcc sfco sfcs sffc sfia sfio sfma sfmm sfos sfss siaa siac siaf siai siam sias sica sicc sici sicm sico sics sifa siff sifo sify siim sima simi simm simo sims simy sios sisa sisc sisi siss sisy siya siyi smaa smac smai smas smay smcc smia smic smif smis smoc smof smos smoy smsc smss soam soas soay soca soci socm soco socs socy sofa sofi sofo soia soic soif soim sois soma somi somm somo somy soof soom soos sooy sosa sosi soso soss soya soyo soys ssaa ssac ssam ssao ssas ssca sscc ssci sscs ssfc ssis ssmc ssoc sssa sssc sssf sssi sssm ssss syam syco syff syfy syia syis sym- syma symi syms syso syss yaaf yaas yacc yaco yacy yafa yafc yaff yafo yama yamf yami yamm yamo yams yaoi yasa yasi yasm yaso yass yaya yayo yays ycao yccc yifa yiff yima yiss ymas ymca ymci ymfc yoff yoma yomi yomo yoof yosi yoso yoyo ysay ysco ysii yyff yyyy