a-a a-t aaa aan aar aas aat aau an- ana ann anr ans ant anu ar- ara arn arr ars art aru as- asa asn asr ass ast asu at- ata atn atr ats att atu au- aua aun aur aus aut naa nan nar nas nat nau nna nnn nns nnt nnu nra nrn nrr nrs nrt nru nsa nsn nsr nss nst nsu nta ntn ntr nts ntt ntu nua nun nur nus nut nuu ra- raa ran rar ras rat rau rna rnn rnr rns rnt rnu rra rrn rrr rrs rrt rru rsa rsn rsr rss rst rsu rta rtn rtr rts rtt rtu rua run rur rus rut ruu saa san sar sas sat sau sna snn snr sns snt snu sr- sra srn srr srs srt ss- ssa ssn ssr sss sst ssu sta stn str sts stt stu sua sun sur sus sut suu taa tan tar tas tat tau tna tnn tnr tns tnt tra trn trr trs trt tru tsa tsn tsr tss tst tsu tta ttn ttr tts ttt ttu tua tun tur tus tut tuu ua- uaa uan uar uas uat uau un- una unn unr uns unt unu ur- ura urn urr urs urt uru usa usn usr uss ust usu uta utn utr uts utt utu uua uun uur uus uut uuu