recr recs reeb reef rees refe reff refg refi refr refs rege regi regr regs rehb rehe rehi rehs reif reii reir reis rere rerg reri rers rese resh resi ress rfef rffc rfgs rfhs rfic rgbe rgbi rghs rhbg rhce rhcg rheb rhee rhes rhfs rhhs rhib rib- ribe ribs ricc rice rich rics rief rier ries rife riff rifs rige rigg righ rigi rigs rihs riif riis rire riri rirs risc rise rish risi riss rrfc rrhs rrif rrrr rsbi rscc rsch rscs rsee rsfc rsgb rsgc rshs rsis rsre s-ib s-ic s-ii sbbs sbcc sbcs sbef sber sbfc sbhc sbhs sbic sbig sbse sbsi scbi sccc scce sccs scec scee sceg scer scfc scfe scfg scfi scgs sch- sche schh schi schr schs sci- scic scie scif scir scis scr- scrc scre scri scrs scsc scsh scsi scsr se-c se-e se-f se-g se-h se-i se-s sebe sebi sebs sec- secc sece secg sech secr secs seeb seec seef seeg seeh seer sees seff sefi sege segg segh segi segs sehe sehr sehs seie seif seih seii seir seis serb serc sere serf serg seri serr sers sesc sese sesh sesi sess sfbc sfcc sfcg sfcs sfer sffc sfhs sfrc sfss sgcb sgce sgcg sgef sger sges sggg sggs sghc sghs sgic sgsh sgss shbs shcc she- sheb shee shef sheh sher shes shgc shgr shhh shhs shib shie shig shih shii shir shis shre shri shrs shsc sibc sibe sibi sibs sicc sice sich sici sics siec sief sieg sier sies sife siff sifr sige sigg sigh sigi sigs sihi sihr sihs sirc sire sirf siri sirr sirs sisc sise sish sisi siss srbc srcc srch sreb srec sres srfc srfi srgb srhs srib sris ssbr sscc ssce ssci sscs ssec ssee sses ssfc ssgs sshs ssis ssrc ssrg ssri ssrs sssb sssc sssf sssh sssi ssss