nscs nsfc nsfk nsfs nsic nsin nsis nskk nsls nsof nsok nsos nssc nssf nsso nsss occc occi occn ocin ocis ocks oclc ocon ocos ofcl off- offc offo offs ofik ofno oici oick oiii oiko oiks oils oink oins oion oios oisc okic okko oklo okni okno okok okol okon oksi okso olcc olfs olic olin olio olis olki olli ollo olof olon olos olsi onc- oncf onco onic onil onis onix onlf onni onno onon onos onsc onso ooff oofs oolo oons oooo ooos oosi oscc osci oscl osco osii osik osin osis oski osli oslo osno osoi osoo osos ossi osso oxi- oxic oxis oxo- oxof oxon oxos oxox oxsi oxxo s-ic s-ii s-os sccc sccl sccs scfc scfi sci- scic scif scil scin scio scis sck- sckl scl- sclc sclk scls scok scol scon scoo scox scsc scsi scsl scsn scso sfcc sfco sfcs sffc sfio sflc sfls sfos sfss sicc sici sick sico sics siff sifl sifo siik siki siko siks sil- silc silf sili silk sill silo sils sini sink sinn sino sins siol sion sios siox sisc sisi sisk siss sixo sixx skfc skic skif skik skil skin skio skis skix skn- skol skon skss sl-i slcc slic slik slln sloc slon sloo slos slsc sncc sncf snco snlf snns snoc snoo snos soci sock socl soco socs socx sofi sofo soic soif soik soil soin sois soki sokk sokn soko solf soli solk soll soln solo sols son- soni sonk sono sons soof sook sool soon soos sosi soso soss soxs sscc ssci sscs ssfc ssfl ssin ssis sslc ssns ssoc sssc sssf sssi ssss x-fi xcii xcis xcon xfin xico xics xiii xil- xili xill xion xisi xixi xlii xlix xloc xlox xoco xois xolo xosl xoxo xsil xsin xson xxii xxix xxxi xxxo xxxx