redr reds reed reen reep rees rend rene renn reno rens reod reop reos repe repo repp repr reps rerd rere rero rers rese resn reso resp ress rnco rncp rncs rndc rndp rnds rnod rnsp rocc roce roco rocs rodd rode rodo rods roed roen roer roes ronc rond rone rono rons rood roon roop roor roos rope ropo rops rorc rore roro rosc rose roso rosp ross rpcs rpdp rpoe rpon rpos rppn rpps rred rrrr rrsp rscc rscn rscs rsdd rsds rsee rsnn rsno rsnr rsos rspo rsps rsre s-os sccc scce sccp sccs scdc scdp scds scec scee scep scer scnd scnr scon scoo scop scor scpe scpo scps scr- scrc scre scrn scrs scsc scsd scsn scso scsr sdcc sdco sddc sdds sdep sder sdes sdpr sdps sdrc sdrs sdsc sdss se-c se-d se-e se-n se-o se-s sec- secc secd sece secn seco secr secs sede sedo seds seec seed seen seep seer sees send sene senn seno senr sens seoc seod seon seop sepd sepe sepn sepo sepp sepr seps serc serd sere sern sero serp serr sers sesc sese seso sess sncc snco sncp sned snee snep sner snes snns snoc snod snoo snop snor snos snpo snpp snrs snsd soce soco socr socs sodd sode sodo sods soec soen soeo soep soes son- sond sone sono sons sood soon soop soor soos sopd sope sopo sopp sops sord sore sorn soro sorr sors sose soso soss spcc spco spcs spdc spde spdp spdr spec sped spee spen sper spes spne spns spoc spod spon spoo spop spor spos sppd spps sprd spro sprs spsd spse spso spsp spss srcc srde srec sreo sres srnn srno sros srpc srps srsd srsp sscc ssce sscp sscs ssdc ssdd ssdp ssec ssee ssep sses ssns ssoc ssop sspc sspe sspo ssps ssrc ssrs sssc ssss