a-a a-i aaa aaf aag aai aam aar aas af- afa aff afg afi afm afr afs ag- aga agf agg agi agm agr ags ai- aia aif aig aii aim air ais ama amf amg ami amm amr ams ar- ara arf arg ari arm arr ars as- asa asf asg asi asm asr ass faa faf fag fai fam far fas ffa fff ffg ffi ffm ffr ffs fga fgf fgg fgi fgm fgr fgs fia fif fig fii fim fir fis fma fmf fmg fmi fmm fmr fms fra frf frg fri frm frr frs fsa fsf fsg fsi fsm fsr fss gaa gaf gag gai gam gar gas gfa gff gfi gfm gfr gfs gga ggg ggi ggm ggr ggs gia gif gig gii gim gir gis gma gmf gmg gmi gmm gmr gms gra grf grg gri grm grr grs gsa gsf gsg gsi gsm gsr gss i-f ia- iaa iaf iag iai iam iar ias ifa iff ifg ifi ifm ifr ifs iga igf igg igi igm igr igs iia iif iii iim iir iis im- ima imf img imi imm ims ir- ira irf irg iri irm irr irs is- isa isf isg isi ism isr iss m-f m-r maa maf mag mai mam mar mas mfa mff mfg mfi mfm mfr mfs mga mgf mgi mgm mgr mgs mi- mia mif mig mii mim mir mis mma mmf mmg mmi mmm mmr mms mra mrf mrg mri mrm mrr mrs msa msf msg msi msm msr mss ra- raa raf rag rai ram rar ras rfa rff rfg rfi rfm rfr rfs rga rgf rgg rgi rgr rgs ria rif rig rii rim rir ris rma rmf rmg rmi rmm rmr rms rra rrf rrg rri rrm rrr rrs rsa rsf rsg rsi rsm rsr rss saa saf sag sai sam sar sas sfa sff sfg sfi sfm sfr sfs sga sgf sgg sgi sgm sgr sgs sia sif sig sii sim sir sis sma smf smg smi smm smr sms sr- sra srf srg sri srm srr srs ss- ssa ssf ssg ssi ssm ssr sss