a-a a-i a-t aaa aad aai aao aap aas aat aax ad- ada add adi ado adp ads adt adx ai- aia aid aii aio aip ais ait aix aoa aod aoi aoo aop aos aot aox ap- apa apd api apo app aps apt apx as- asa asd asi aso asp ass ast asx at- ata atd ati ato atp ats att atx ax- axa axi axo axp axs axt axx daa dad dai dao dap das dat dax dda ddd ddi ddo ddp dds ddt ddx di- dia did dii dio dip dis dit dix doa dod doi doo dop dos dot dox dpa dpd dpi dpo dpp dps dpt dsa dsd dsi dso dsp dss dst dsx dta dtd dti dto dtp dts dtt dtx dxd dxi dxo dxp dxs dxt dxx i-d ia- iaa iad iai iao iap ias iat ida idd idi ido idp ids idt idx iia iid iii iio iip iis iit iix io- ioa iod ioi ioo iop ios iot ipa ipd ipi ipo ipp ips ipt ipx is- isa isd isi iso isp iss ist ita itd iti ito itp its itt itx ixi o-i oaa oad oai oao oap oas oat oax oda odd odi odo odp ods odt oia oid oii oio oip ois oit oo- ooa ood ooi ooo oop oos oot oox op- opa opd opi opo opp ops opt opx os- osa osd osi oso osp oss ost osx ot- ota otd oti oto otp ots ott ox- oxa oxi oxo oxt oxx p-p paa pad pai pao pap pas pat pax pda pdd pdi pdo pdp pds pdt pdx pia pid pii pio pip pis pit pix poa pod poi poo pop pos pot pox ppa ppd ppi ppo ppp pps ppt ppx ps- psa psd psi pso psp pss pst psx pt- pta ptd pti pto ptp pts ptt ptx pxs pxt saa sad sai sao sap sas sat sax sda sdd sdi sdo sdp sds sdt sia sid sii sio sip sis sit six soa sod soi soo sop sos sot sox spa spd spi spo spp sps spt spx ss- ssa ssd ssi sso ssp sss sst ssx sta std sti sto stp sts stt stx sxi sxs sxt t-x taa tad tai tao tap tas tat tax tda tdd tdi tdo tdp tds tdt tdx tia tid tii tio tip tis tit tix to- toa tod toi too top tos tot tox tpa tpd tpi tpo tpp tps tpt tpx tsa tsd tsi tso tsp tss tst tsx tta ttd tti tto ttp tts ttt ttx txi txs txt xaa xad xap xas xat xda xdi xds xdt xia xii xio xis xit xix xoa xod xoi xoo xop xos xot xox xpa xpd xpo xpp xps xpt xsa xsi xsp xss xst xti xtp xts xtx xxi xxo xxp xxx