sere seri serm serp serr sers sery sesc sese sesi sess seye seym seys sicc sice sici sicm sicp sics siec sier sies siim sime simi simm simp sims simy sipc sipe sipi sipp sips sipy sirc sire siri sirp sirr sirs sisc sise sisi siss sisy siyi smcc smcp smec smee smei smep smic smie smis smps smry smsc smsp smss spcc spcs spec spee sper spes spey spic spie spim spip spir spis spme spmi spms spps spri sprm sprs spry spse spsp spss spy- spyr spys srcc srec srem sres srim sris srmc srpc srps srsp sscc ssce ssci sscp sscs ssec ssee ssem ssep sses ssis ssmc sspc sspe ssps ssrc ssri ssrm ssrs sssc sssi sssm ssss syce sycr syer syes syis sym- syme symi syms sype syre syrs syry syse syss yccc ycee ycie yeep yeer yees yeie yeii yeir yeme yemm yepe yepp yeps yere yeri yerm yerr yers yery yesi yesm yess yeye yeyi yeyr yipe yips yire yirm yirr yise yiss ymci ymer ymir ypcc ypir ypsi ysee yser yses ysii yspi ysse yyyy