npu nsa nsc nsd nse nsi nsl nsn nso nsp nss nst nsu nta ntc ntd nte nti ntn nto ntp nts ntt ntu nua nuc nud nue nui nul nun nuo nup nus nut nuu o-i oaa oac oad oae oai oal oan oao oap oas oat oau oc- oca occ ocd oci ocl ocn oco ocp ocs oct ocu oda odc odd ode odi odl odn odo odp ods odt odu oea oec oed oee oei oel oen oeo oep oes oet oia oic oid oie oii oil oin oio oip ois oit oiu ola olc old ole oli oll oln olo olp ols olt olu on- ona onc ond one oni onl onn ono onp ons ont onu oo- ooa ooc ood ooi ool oon ooo oop oos oot op- opa opc opd ope opi opl opn opo opp ops opt os- osa osc osd ose osi osl osn oso osp oss ost osu ot- ota otc otd ote oti otl otn oto otp ots ott otu ou- oua ouc oud oue oui oul oun ouo oup ous out p-p paa pac pad pae pai pal pan pao pap pas pat pau pca pcc pcd pce pci pcl pcn pco pcp pcs pct pcu pda pdc pdd pde pdi pdl pdn pdo pdp pds pdt pdu pea pec ped pee pei pel pen peo pep pes pet peu pia pic pid pie pii pil pin pio pip pis pit piu pla plc pld ple pli pll pln plo plp pls plt plu pn- pna pnc pnd pne pni pnl pnn pno pnp pns pnt pnu poa poc pod poe poi pol pon poo pop pos pot pou ppa ppc ppd ppe ppi ppl ppn ppo ppp pps ppt ppu ps- psa psc psd pse psi psl psn pso psp pss pst psu pt- pta ptc ptd pte pti ptl ptn pto ptp pts ptt ptu pua puc pud pue pui pul pun pup pus put puu saa sac sad sae sai sal san sao sap sas sat sau sca scc scd sce sci scl scn sco scp scs sct scu sda sdc sdd sde sdi sdl sdn sdo sdp sds sdt sdu se- sea sec sed see sei sel sen seo sep ses set seu sia sic sid sie sii sil sin sio sip sis sit siu sla slc sld sle sli sll sln slo slp sls slt slu sna snc snd sne sni snl snn sno snp sns snt snu soa soc sod soe soi sol son soo sop sos sot sou spa spc spd spe spi spl spn spo spp sps spt spu ss- ssa ssc ssd sse ssi ssl ssn sso ssp sss sst ssu sta stc std ste sti stl stn sto stp sts stt stu sua suc sud sue sui sul sun suo sup sus sut suu taa tac tad tae tai tal tan tao tap tas tat tau tca tcc tcd tce tci tcl tcn tco tcp tcs tct tcu tda tdc tdd tde tdi tdl tdn tdo tdp tds tdt tdu te- tea tec ted tee tei tel ten teo tep tes tet teu tia tic tid tie tii til tin tio tip tis tit tiu tla tlc tld tle tli tll tln tlo tlp tls tlt tlu tna tnc tnd tne tni tnl tnn tno tnp tns tnt to- toa toc tod toe toi tol ton too top tos tot tou tpa tpc tpd tpe tpi tpl tpn tpo tpp tps tpt tpu tsa tsc tsd tse tsi tsl tsn tso tsp tss tst tsu tta ttc ttd tte tti ttl ttn tto ttp tts ttt ttu tua tuc tud tue tui tul tun tuo tup tus tut tuu ua- uaa uac uad uae uai ual uan uao uap uas uat uau uca ucc ucd uce uci ucl ucn uco ucp ucs uct ucu uda udc udd ude udi udl udn udo udp uds udt udu uea uec ued uee uei uel uen uep ues uet uia uic uid uie uii uil uin uio uip uis uit uiu ula ulc uld ule uli ull uln ulo ulp uls ult ulu un- una unc und une uni unl unn uno unp uns unt unu uoa uoc uod uoe uol uon uoo uop uos uot up- upa upc upd upe upi upn upo upp ups upt upu usa usc usd use usi usl usn uso usp uss ust usu uta utc utd ute uti utl utn uto utp uts utt utu uua uuc uue uun uus uut uuu