a-a aaa aan aao aar aaw an- ana ann ano anr aoa aon aoo aor aow ar- ara arn aro arr arw aw- awa awn awo awr aww naa nan nao nar naw nna nnn nno nnw no- noa non noo nor now nra nrn nro nrr nrw nwa nwn nwo nwr oaa oan oao oar oaw on- ona onn ono onr oo- ooa oon ooo oor oow or- ora orn oro orr owa own owo oww ra- raa ran rao rar raw rna rnn rno rnr rnw roa ron roo ror row rra rrn rrr rwa rwr waa wan wao war waw wn- wna wnn wno wnw woa won woo wor wow wr- wra wrn wro wrr wrw wwa wwn wwo www