-ic a-a a-c a-i a-t aaa aac aai aao aap aar aas aat aax ac- aca acc aci aco acp acr acs act acx ai- aia aic aii aio aip air ais ait aix aoa aoc aoi aoo aop aor aos aot aox ap- apa apc api apo app apr aps apt apx ar- ara arc ari aro arp arr ars art arx as- asa asc asi aso asp asr ass ast asx at- ata atc ati ato atp atr ats att atx ax- axa axi axo axp axr axs axt axx c-- caa cac cai cao cap car cas cat cax cca ccc cci cco ccp ccr ccs cct ccx ci- cia cic cii cio cip cir cis cit cix co- coa coc coi coo cop cor cos cot cox cpa cpc cpi cpo cpp cpr cps cpt cpx cra crc cri cro crp crr crs crt crx csa csc csi cso csp csr css cst csx cta ctc cti cto ctp ctr cts ctt ctx cxc cxi cxo cxp cxr cxs cxt cxx ia- iaa iac iai iao iap iar ias iat ica icc ici ico icp icr ics ict iia iic iii iio iip iir iis iit iix io- ioa ioc ioi ioo iop ior ios iot ipa ipc ipi ipo ipp ipr ips ipt ipx ir- ira irc iri iro irp irr irs irt irx is- isa isc isi iso isp isr iss ist ita itc iti ito itp its itt itx ixc ixi o-i oaa oac oai oao oap oar oas oat oax oc- oca occ oci oco ocp ocr ocs oct ocx oia oic oii oio oip oir ois oit oo- ooa ooc ooi ooo oop oor oos oot oox op- opa opc opi opo opp opr ops opt opx or- ora orc ori oro orp orr ors ort orx os- osa osc osi oso osp osr oss ost osx ot- ota otc oti oto otp otr ots ott ox- oxa oxc oxi oxo oxt oxx p-p paa pac pai pao pap par pas pat pax pca pcc pci pco pcp pcr pcs pct pcx pia pic pii pio pip pir pis pit pix poa poc poi poo pop por pos pot pox ppa ppc ppi ppo ppp ppr pps ppt ppx pra prc pri pro prp prr prs prt prx ps- psa psc psi pso psp psr pss pst psx pt- pta ptc pti pto ptp ptr pts ptt ptx pxc pxr pxs pxt ra- raa rac rai rao rap rar ras rat rax rca rcc rci rco rcp rcr rcs rct rcx ria ric rii rio rip rir ris rit rix roa roc roi roo rop ror ros rot rox rpa rpc rpi rpo rpp rpr rps rpt rpx rra rrc rri rrp rrr rrs rrt rsa rsc rsi rso rsp rsr rss rst rsx rta rtc rti rto rtp rtr rts rtt rtx rxp rxr rxs saa sac sai sao sap sar sas sat sax sca scc sci sco scp scr scs sct scx sia sic sii sio sip sir sis sit six soa soc soi soo sop sor sos sot sox spa spc spi spo spp spr sps spt spx sr- sra src sri sro srp srr srs srt srx ss- ssa ssc ssi sso ssp ssr sss sst ssx sta stc sti sto stp str sts stt stx sxc sxi sxs sxt t-x taa tac tai tao tap tar tas tat tax tca tcc tci tco tcp tcr tcs tct tcx tia tic tii tio tip tir tis tit tix to- toa toc toi too top tor tos tot tox tpa tpc tpi tpo tpp tpr tps tpt tpx tra trc tri tro trp trr trs trt trx tsa tsc tsi tso tsp tsr tss tst tsx tta ttc tti tto ttp ttr tts ttt ttx txi txs txt xaa xac xap xar xas xat xci xcp xcr xcx xia xic xii xio xis xit xix xoa xoc xoi xoo xop xor xos xot xox xpa xpc xpo xpp xps xpt xrc xrt xrx xsa xsc xsi xsp xss xst xtc xti xtp xtr xts xtx xxi xxo xxp xxx