rrrr rsaa rsai rscc rscn rscs rsee rsis rsna rsnn rsnr rsre rssa s-ic s-ii sa-c saac saae saan saar saas saca sacc sace saci sacn sacr sacs saen saer saes saia saic saie sain sair sais sana sane sani sann sanr sans sara sarc sare sari sarn sarr sars sasa sasc sase sasi sass scaa scac scai scan scar scas sccc scce sccs scea scec scee scer sci- scia scic scie scin scir scis scna scnr scr- scra scrc scre scri scrn scrs scsa scsc scsi scsn scsr se-c se-e se-i se-n se-s seaa seac sean sear seas sec- seca secc sece secn secr secs seea seec seen seer sees seia seie seii sein seir seis sena sene seni senn senr sens sera serc sere seri sern serr sers sesa sesc sese sesi sess siaa siac siae siai sian sias sica sicc sice sici sics siec sien sier sies sina sine sini sinn sins sira sirc sire siri sirr sirs sisa sisc sise sisi siss snar snas snca sncc snee sner snes snia snie snir snns snra snrs sras srcc srec sres sris srna srni srnn ssaa ssac ssan ssas ssca sscc ssce ssci sscs ssec ssee sses ssin ssis ssns ssra ssrc ssri ssrs sssa sssc sssi ssss