rids ried rien rier ries riin riis rind rine rinn rire riri rirs risc risd rise risi riss rnbr rncs rndc rnds rnie rnin rred rrrr rsbi rscc rscn rscs rsdd rsds rsee rsid rsis rsnn rsnr rsre s-ib s-ic s-ii sbbs sbcc sbcs sbds sber sbic sbsd sbse sbsi scbi sccc scce sccs scdc scds scec scee scer sci- scic scid scie scin scir scis scnd scnr scr- scrc scre scri scrn scrs scsc scsd scsi scsn scsr sdcc sddc sdds sder sdes sdib sdic sdrc sdrs sdsc sdss se-c se-d se-e se-i se-n se-s sebe sebi sebs sec- secc secd sece secn secr secs sede seds seeb seec seed seen seer sees seid seie seii sein seir seis send sene seni senn senr sens serb serc serd sere seri sern serr sers sesc sese sesi sess sibc sibe sibi sibs sicc sice sici sics sidd side sidi sidr sids siec sied sien sier sies sind sine sini sinn sins sirc sire siri sirr sirs sisc sisd sise sisi siss sncc sneb sned snee sner snes snib snid snie snir snns snrs snsd srbc srcc srde sreb srec sres srib sris srni srnn srsd ssbn ssbr sscc ssce ssci sscs ssdc ssdd ssec ssee sses ssid ssin ssis ssns ssrc ssri ssrs sssb sssc sssi ssss