a-a a-i aaa aag aai aao aas ag- aga agg agi ago ags ai- aia aig aii aio ais aoa aog aoi aoo aos as- asa asg asi aso ass gaa gag gai gao gas gga ggg ggi ggo ggs gia gig gii gio gis goa gog goi goo gos gsa gsg gsi gso gss ia- iaa iag iai iao ias iga igg igi igo igs iia iii iio iis io- ioa iog ioi ioo ios is- isa isg isi iso iss o-i oaa oag oai oao oas oga ogg ogi ogo ogs oia oii oio ois oo- ooa oog ooi ooo oos os- osa osg osi oso oss saa sag sai sao sas sga sgg sgi sgo sgs sia sig sii sio sis soa sog soi soo sos ss- ssa ssg ssi sso sss