a-a a-t aaa aan aao aar aat an- ana ann ano anr ant aoa aon aoo aor aot ar- ara arn aro arr art at- ata atn ato atr att naa nan nao nar nat nna nnn nno nnt no- noa non noo nor not nra nrn nro nrr nrt nta ntn nto ntr ntt oaa oan oao oar oat on- ona onn ono onr ont oo- ooa oon ooo oor oot or- ora orn oro orr ort ot- ota otn oto otr ott ra- raa ran rao rar rat rna rnn rno rnr rnt roa ron roo ror rot rra rrn rrr rrt rta rtn rto rtr rtt taa tan tao tar tat tna tnn tno tnr tnt to- toa ton too tor tot tra trn tro trr trt tta ttn tto ttr ttt