a-a aaa aag aam aao aas ag- aga agg agm ago ags ama amg amm amo ams aoa aog aom aoo aos as- asa asg asm aso ass gaa gag gam gao gas gga ggg ggm ggo ggs gma gmg gmm gmo gms goa gog gom goo gos gsa gsg gsm gso gss m-o maa mag mam mao mas mga mgm mgo mgs mma mmg mmm mmo mms moa mog mom moo mos msa msg msm mso mss oaa oag oam oao oas oga ogg ogo ogs om- oma omg omm omo oms oo- ooa oog oom ooo oos os- osa osg osm oso oss saa sag sam sao sas sga sgg sgm sgo sgs sma smg smm smo sms soa sog som soo sos ss- ssa ssg ssm sso sss