oofs ooid oone oons oooo ooos oose oosi oscc osce osci osco osdi osec osed osee osei osen oses osie osii osin osis osno osoi osoo osos ossd osse ossi osso s-ic s-ii s-os sccc scce sccs scdc scdf scds scec scee scfc scfe scfi sci- scic scid scie scif scin scio scis scnd scon scoo scsc scsd scsi scsn scso sdcc sdco sddc sdds sdef sdes sdfc sdic sdif sdio sdsc sdsf sdss se-c se-d se-e se-f se-i se-n se-o se-s sec- secc secd sece secn seco secs sede sedo seds seec seed seef seen sees seff sefi seid seie seif seii sein seis send sene seni senn seno sens seoc seod seoi seon sesc sese sesi seso sess sfcc sfco sfcs sfdc sffc sfio sfne sfos sfss sicc sice sici sico sics sidd side sidi sido sids siec sied sief sien sies sife siff sifo sind sine sini sinn sino sins siod sioe sion sios sisc sisd sise sisi siss sncc sncf snco sned snee snes snid snie snns snoc snod snoo snos snsd soce soci soco socs sodd sode sodo sods soec soen soeo soes sofi sofo soic soie soif soin sois son- sond sone soni sono sons sood soof soon soos sose sosi soso soss sscc ssce ssci sscs ssdc ssdd ssdf ssec ssee sses ssfc ssid ssin ssis ssns ssoc sssc sssf sssi ssss