-up a-a a-c a-t aaa aac aao aap aar aas aat aau aax ac- aca acc aco acp acr acs act acu acx aoa aoc aoo aop aor aos aot aou aox ap- apa apc apo app apr aps apt apu apx ar- ara arc aro arp arr ars art aru arx as- asa asc aso asp asr ass ast asu asx at- ata atc ato atp atr ats att atu atx au- aua auc auo aup aur aus aut aux ax- axa axo axp axr axs axt axx c-- caa cac cao cap car cas cat cau cax cca ccc cco ccp ccr ccs cct ccu ccx co- coa coc coo cop cor cos cot cou cox cpa cpc cpo cpp cpr cps cpt cpu cpx cra crc cro crp crr crs crt cru crx csa csc cso csp csr css cst csu csx cta ctc cto ctp ctr cts ctt ctu ctx cua cuc cuo cup cur cus cut cuu cxc cxo cxp cxr cxs cxt cxx oaa oac oao oap oar oas oat oau oax oc- oca occ oco ocp ocr ocs oct ocu ocx oo- ooa ooc ooo oop oor oos oot oox op- opa opc opo opp opr ops opt opx or- ora orc oro orp orr ors ort oru orx os- osa osc oso osp osr oss ost osu osx ot- ota otc oto otp otr ots ott otu ou- oua ouc ouo oup our ous out ox- oxa oxc oxo oxt oxx p-p paa pac pao pap par pas pat pau pax pca pcc pco pcp pcr pcs pct pcu pcx poa poc poo pop por pos pot pou pox ppa ppc ppo ppp ppr pps ppt ppu ppx pra prc pro prp prr prs prt pru prx ps- psa psc pso psp psr pss pst psu psx pt- pta ptc pto ptp ptr pts ptt ptu ptx pua puc pup pur pus put puu pxc pxr pxs pxt ra- raa rac rao rap rar ras rat rau rax rca rcc rco rcp rcr rcs rct rcu rcx roa roc roo rop ror ros rot rou rox rpa rpc rpo rpp rpr rps rpt rpu rpx rra rrc rrp rrr rrs rrt rru rsa rsc rso rsp rsr rss rst rsu rsx rta rtc rto rtp rtr rts rtt rtu rtx rua ruc ruo rup rur rus rut ruu rux rxp rxr rxs saa sac sao sap sar sas sat sau sax sca scc sco scp scr scs sct scu scx soa soc soo sop sor sos sot sou sox spa spc spo spp spr sps spt spu spx sr- sra src sro srp srr srs srt srx ss- ssa ssc sso ssp ssr sss sst ssu ssx sta stc sto stp str sts stt stu stx sua suc suo sup sur sus sut suu sux sxc sxs sxt sxu t-x taa tac tao tap tar tas tat tau tax tca tcc tco tcp tcr tcs tct tcu tcx to- toa toc too top tor tos tot tou tox tpa tpc tpo tpp tpr tps tpt tpu tpx tra trc tro trp trr trs trt tru trx tsa tsc tso tsp tsr tss tst tsu tsx tta ttc tto ttp ttr tts ttt ttu ttx tua tuc tuo tup tur tus tut tuu tux txs txt txu ua- uaa uac uao uap uar uas uat uau uca ucc uco ucp ucr ucs uct ucu uoa uoc uoo uop uor uos uot uox up- upa upc upo upp upr ups upt upu upx ur- ura urc uro urp urr urs urt uru urx usa usc uso usp usr uss ust usu usx uta utc uto utp utr uts utt utu utx uua uuc uur uus uut uuu uxc uxo uxr uxt uxu xaa xac xap xar xas xat xau xcp xcr xcx xoa xoc xoo xop xor xos xot xox xpa xpc xpo xpp xps xpt xrc xrt xrx xsa xsc xsp xss xst xtc xtp xtr xts xtx xup xus xxo xxp xxx