ogoa ogog ogsm okak okam okas okgo okka okko okmo okok okom oksa okso omac omak omam omao omas ombo omca omma omo- omoa omoo omsa omsk ooaa ooak ooba ooma ooms oooo ooos oosa osag osak osam osas osba osca oscc osco osm- osmo osoo osos ossa ossb osso s-os sa-c saab saac saag saak saam saas saba sabb sabc sabo sabs saca sacc sack saco sacs saga sagg sago sags saka sakb sakk sako saks sam- sama samc samm samo sams saos sasa sasc sask sasm saso sass sbaa sbac sbas sbbs sbca sbcc sbcs sbma sbmc sbsa scaa scab scac scag scak scam scas scba sccc sccm sccs scgs sck- scma scmc scmm scmo scms scob scog scok scom scoo scsa scsc scso sgaa sgac sgca sgcb sgcg sggg sggs sgsm sgss skab skac skag skog skss smaa smac smak smas smba smbc smcc smgs smkb smoc smog smok smos smsc smss soak soam soas soba sobo sobs soca sock socm soco socs soga sogo sogs soka sokk soko soma somb somm somo soog sook soom soos sosa soso soss ssaa ssab ssac ssam ssao ssas ssca sscc sscs ssgs ssmc ssoc sssa sssb sssc sssm ssss