omni omo- omoi omon omoo omsi omsn onc- oncf onco ongi ongo onic onis onni onno onon onos onsc onso ooff oofs ooho oohs ooms oons oooh oooo ooos oosi oscc osci osco osgi oshc oshi osho oshs osii osim osin osis osm- osmo osno osoi osoo osos ossi osso s-ic s-ii s-os sccc sccm sccs scfc scfg scfi scfm scgs sch- schh schi scho schs sci- scic scif scim scin scio scis scmc scmm scmo scms scog scoh scom scon scoo scsc scsh scsi scsn scso sfcc sfcg sfco sfcs sffc sfhs sfio sfmm sfog sfos sfss sgcg sggg sggs sghc sghs sgic sgio sgsh sgsm sgss shcc shgc shhh shhs shig shih shii shim shin shio shis shm- shmo shof shog shom shon shoo shos shsc sicc sich sici sicm sico sics siff sifo sigg sigh sigi sign sigo sigs sihi sihs siim simh simi simm simo sims sing sinh sini sinn sino sins sion sios sisc sish sisi siss smcc smch smfh smgs smhs smic smif smig smin smis smnc smoc smof smog smon smos smsc smsh smsn smss sncc sncf snco snhs snig snns snoc snog snom snoo snos soch soci socm soco socs sofi sofo sogh sogi sogn sogo sogs sohh sohm sohn soho sohs soic soif soim soin sois somi somm somn somo son- song soni sono sons soof soog soom soon soos sosh sosi soso soss sscc ssci sscs ssfc ssgs sshs ssin ssis ssmc ssns ssoc sssc sssf sssh sssi sssm ssss