a-a a-z aaa aag aao aau aaz ag- aga agg ago agu agz aoa aog aoo aou au- aua aug auo auz az- aza azg azo azu azz gaa gag gao gau gaz gga ggg ggo ggu ggz goa gog goo gou goz gu- gua gug guo guu guz gza gzo gzu oaa oag oao oau oga ogg ogo oo- ooa oog ooo ou- oua ouo oza ozo ozu ozz ua- uaa uag uao uau uaz uga ugg ugo ugu uoa uog uoo uua uug uuu uza uzo uzu z-g zaa zag zao zaz zgg zo- zoa zog zoo zou zug zuz zzz