a-a a-i a-t aaa aai aan aao aap aar aas aat aax ai- aia aii ain aio aip air ais ait aix an- ana ani ann ano anp anr ans ant anx aoa aoi aon aoo aop aor aos aot aox ap- apa api apn apo app apr aps apt apx ar- ara ari arn aro arp arr ars art arx as- asa asi asn aso asp asr ass ast asx at- ata ati atn ato atp atr ats att atx ax- axa axi axn axo axp axr axs axt axx ia- iaa iai ian iao iap iar ias iat iia iii iin iio iip iir iis iit iix in- ina ini inn ino inp inr ins int inx io- ioa ioi ion ioo iop ior ios iot ipa ipi ipn ipo ipp ipr ips ipt ipx ir- ira iri irn iro irp irr irs irt irx is- isa isi isn iso isp isr iss ist ita iti itn ito itp its itt itx ixi ixn n-i naa nai nan nao nap nar nas nat nax nia nii nin nio nip nir nis nit nix nna nni nnn nno nnp nns nnt no- noa noi non noo nop nor nos not nox npa npi npn npo npp npr nps npt nra nri nrn nro nrp nrr nrs nrt nrx nsa nsi nsn nso nsp nsr nss nst nsx nta nti ntn nto ntp ntr nts ntt ntx nxt o-i oaa oai oan oao oap oar oas oat oax oia oii oin oio oip oir ois oit on- ona oni onn ono onp onr ons ont onx oo- ooa ooi oon ooo oop oor oos oot oox op- opa opi opn opo opp opr ops opt opx or- ora ori orn oro orp orr ors ort orx os- osa osi osn oso osp osr oss ost osx ot- ota oti otn oto otp otr ots ott ox- oxa oxi oxn oxo oxt oxx p-p paa pai pan pao pap par pas pat pax pia pii pin pio pip pir pis pit pix pn- pna pni pnn pno pnp pnr pns pnt pnx poa poi pon poo pop por pos pot pox ppa ppi ppn ppo ppp ppr pps ppt ppx pra pri prn pro prp prr prs prt prx ps- psa psi psn pso psp psr pss pst psx pt- pta pti ptn pto ptp ptr pts ptt ptx pxr pxs pxt ra- raa rai ran rao rap rar ras rat rax ria rii rin rio rip rir ris rit rix rna rni rnn rno rnp rnr rns rnt roa roi ron roo rop ror ros rot rox rpa rpi rpn rpo rpp rpr rps rpt rpx rra rri rrn rrp rrr rrs rrt rsa rsi rsn rso rsp rsr rss rst rsx rta rti rtn rto rtp rtr rts rtt rtx rxp rxr rxs saa sai san sao sap sar sas sat sax sia sii sin sio sip sir sis sit six sna sni snn sno snp snr sns snt soa soi son soo sop sor sos sot sox spa spi spn spo spp spr sps spt spx sr- sra sri srn sro srp srr srs srt srx ss- ssa ssi ssn sso ssp ssr sss sst ssx sta sti stn sto stp str sts stt stx sxi sxn sxs sxt t-x taa tai tan tao tap tar tas tat tax tia tii tin tio tip tir tis tit tix tna tni tnn tno tnp tnr tns tnt tnx to- toa toi ton too top tor tos tot tox tpa tpi tpn tpo tpp tpr tps tpt tpx tra tri trn tro trp trr trs trt trx tsa tsi tsn tso tsp tsr tss tst tsx tta tti ttn tto ttp ttr tts ttt ttx txi txn txs txt xaa xan xap xar xas xat xia xii xin xio xis xit xix xna xno xns xoa xoi xon xoo xop xor xos xot xox xpa xpn xpo xpp xps xpt xrt xrx xsa xsi xsp xss xst xti xtp xtr xts xtx xxi xxo xxp xxx