rscs rsdd rsds rsee rsnn rsno rsnr rsos rsre s-os sbbs sbcc sbcs sbds sber sbor sbsd sbse sccc scce sccs scdc scds scec scee scer scnd scnr scob scon scoo scor scr- scrc scre scrn scrs scsc scsd scsn scso scsr sdcc sdco sddc sdds sder sdes sdrc sdrs sdsc sdss se-c se-d se-e se-n se-o se-s sebe sebo sebs sec- secc secd sece secn seco secr secs sede sedo seds seeb seec seed seen seer sees send sene senn seno senr sens seoc seod seon serb serc serd sere sern sero serr sers sesc sese seso sess sncc snco sneb sned snee sner snes snns snob snoc snod snoo snor snos snrs snsd sobe sobo sobr sobs soce soco socr socs sodd sode sodo sods soec soen soeo soes son- sond sone sono sons sood soon soor soos sorb sord sore sorn soro sorr sors sose soso soss srbc srcc srde sreb srec sreo sres srnn srno sros srsd ssbn ssbr sscc ssce sscs ssdc ssdd ssec ssee sses ssns ssoc ssrc ssrs sssb sssc ssss