a-a a-i a-t aaa aai aao aar aat aax ai- aia aii aio air ait aix aoa aoi aoo aor aot aox ar- ara ari aro arr art arx at- ata ati ato atr att atx ax- axa axi axo axr axt axx ia- iaa iai iao iar iat iia iii iio iir iit iix io- ioa ioi ioo ior iot ir- ira iri iro irr irt irx ita iti ito itt itx ixi o-i oaa oai oao oar oat oax oia oii oio oir oit oo- ooa ooi ooo oor oot oox or- ora ori oro orr ort orx ot- ota oti oto otr ott ox- oxa oxi oxo oxt oxx ra- raa rai rao rar rat rax ria rii rio rir rit rix roa roi roo ror rot rox rra rri rrr rrt rta rti rto rtr rtt rtx rxr t-x taa tai tao tar tat tax tia tii tio tir tit tix to- toa toi too tor tot tox tra tri tro trr trt trx tta tti tto ttr ttt ttx txi txt xaa xar xat xia xii xio xit xix xoa xoi xoo xor xot xox xrt xrx xti xtr xtx xxi xxo xxx