ggg ggi ggm ggr ggs gig gii gim gir gis gmg gmi gmm gmr gms grg gri grm grr grs gsg gsi gsm gsr gss igg igi igm igr igs iii iim iir iis im- img imi imm ims ir- irg iri irm irr irs is- isg isi ism isr iss m-r mgi mgm mgr mgs mi- mig mii mim mir mis mmg mmi mmm mmr mms mrg mri mrm mrr mrs msg msi msm msr mss rgg rgi rgr rgs rig rii rim rir ris rmg rmi rmm rmr rms rrg rri rrm rrr rrs rsg rsi rsm rsr rss sgg sgi sgm sgr sgs sig sii sim sir sis smg smi smm smr sms sr- srg sri srm srr srs ss- ssg ssi ssm ssr sss