a-a a-i a-t aaa aaf aai aan aar aas aat af- afa aff afi afn afr afs aft ai- aia aif aii ain air ais ait an- ana anf ani ann anr ans ant ar- ara arf ari arn arr ars art as- asa asf asi asn asr ass ast at- ata atf ati atn atr ats att faa faf fai fan far fas fat ffa fff ffi ffn ffr ffs fft fia fif fii fin fir fis fit fna fnf fni fnn fnr fns fnt fra frf fri frn frr frs frt fsa fsf fsi fsn fsr fss fst fta ftf fti ftn ftr fts ftt i-f ia- iaa iaf iai ian iar ias iat ifa iff ifi ifn ifr ifs ift iia iif iii iin iir iis iit in- ina inf ini inn inr ins int ir- ira irf iri irn irr irs irt is- isa isf isi isn isr iss ist ita itf iti itn its itt n-i naa naf nai nan nar nas nat nfa nff nfi nfn nfr nfs nft nia nif nii nin nir nis nit nna nnf nni nnn nns nnt nra nrf nri nrn nrr nrs nrt nsa nsf nsi nsn nsr nss nst nta ntf nti ntn ntr nts ntt ra- raa raf rai ran rar ras rat rfa rff rfi rfn rfr rfs rft ria rif rii rin rir ris rit rna rni rnn rnr rns rnt rra rrf rri rrn rrr rrs rrt rsa rsf rsi rsn rsr rss rst rta rtf rti rtn rtr rts rtt saa saf sai san sar sas sat sfa sff sfi sfn sfr sfs sft sia sif sii sin sir sis sit sna snf sni snn snr sns snt sr- sra srf sri srn srr srs srt ss- ssa ssf ssi ssn ssr sss sst sta stf sti stn str sts stt taa taf tai tan tar tas tat tfa tff tfi tfn tfr tfs tft tia tif tii tin tir tis tit tna tnf tni tnn tnr tns tnt tra trf tri trn trr trs trt tsa tsf tsi tsn tsr tss tst tta ttf tti ttn ttr tts ttt