omsi omsk oobi oodi ooid ooms oooo ooos oosi oscc osci osco osdi osii osik osim osis oski osm- osmo osoi osoo osos ossb ossd ossi osso s-ib s-ic s-ii s-os sbbs sbcc sbcs sbds sbic sbmc sbsd sbsi scbi sccc sccm sccs scdc scds sci- scic scid scim scio scis sck- scmc scmm scmo scms scob scok scom scoo scsc scsd scsi scso sdcc sdco sddc sdds sdib sdic sdio sdmo sdms sdsc sdsm sdss sibc sibi sibo sibs sicc sici sick sicm sico sics sidd sidi sido sids siik siim siki siko siks simd simi simm simo sims siod sios sisc sisd sisi sisk siss skic skid skik skim skio skis sksd skss smbc smcc smdc smic smid smis smkb smkd smki smoc smod smok smos smsc smsd smss sobo sobs soci sock socm soco socs sodd sodo sods soic soik soim sois soki sokk soko somb somi somm somo sood sook soom soos sosi soso soss sscc ssci sscs ssdc ssdd ssdm ssid ssis ssmc ssoc sssb sssc sssi sssm ssss