nsp nsr nss nst nsu nta ntb ntd nte nti ntn ntp ntr nts ntt ntu nua nub nud nue nui nul nun nup nur nus nut nuu p-p paa pab pad pae pai pal pan pap par pas pat pau pba pbb pbd pbe pbi pbl pbn pbp pbr pbs pbt pbu pda pdb pdd pde pdi pdl pdn pdp pdr pds pdt pdu pea peb ped pee pei pel pen pep per pes pet peu pia pib pid pie pii pil pin pip pir pis pit piu pla plb pld ple pli pll pln plp plr pls plt plu pn- pna pnb pnd pne pni pnl pnn pnp pnr pns pnt pnu ppa ppb ppd ppe ppi ppl ppn ppp ppr pps ppt ppu pra prb prd pre pri prl prn prp prr prs prt pru ps- psa psb psd pse psi psl psn psp psr pss pst psu pt- pta ptb ptd pte pti ptl ptn ptp ptr pts ptt ptu pua pub pud pue pui pul pun pup pur pus put puu ra- raa rab rad rae rai ral ran rap rar ras rat rau rba rbb rbd rbe rbi rbl rbn rbp rbr rbs rbt rbu rda rdb rdd rde rdi rdl rdn rdp rdr rds rdt rdu re- rea reb red ree rei rel ren rep rer res ret reu ria rib rid rie rii ril rin rip rir ris rit rla rld rle rli rll rln rlp rlr rls rlt rlu rna rnb rnd rni rnn rnp rnr rns rnt rnu rpa rpb rpd rpe rpi rpl rpn rpp rpr rps rpt rpu rra rrb rrd rri rrl rrn rrp rrr rrs rrt rru rsa rsb rsd rse rsi rsl rsn rsp rsr rss rst rsu rta rtb rtd rte rti rtl rtn rtp rtr rts rtt rtu rua rub rud rue rui run rup rur rus rut ruu saa sab sad sae sai sal san sap sar sas sat sau sba sbb sbd sbe sbi sbl sbn sbp sbr sbs sbt sbu sda sdb sdd sde sdi sdl sdn sdp sdr sds sdt sdu se- sea seb sed see sei sel sen sep ser ses set seu sia sib sid sie sii sil sin sip sir sis sit siu sla slb sld sle sli sll sln slp slr sls slt slu sna snb snd sne sni snl snn snp snr sns snt snu spa spb spd spe spi spl spn spp spr sps spt spu sr- sra srb srd sre sri srl srn srp srr srs srt ss- ssa ssb ssd sse ssi ssl ssn ssp ssr sss sst ssu sta stb std ste sti stl stn stp str sts stt stu sua sub sud sue sui sul sun sup sur sus sut suu taa tab tad tae tai tal tan tap tar tas tat tau tba tbb tbd tbe tbi tbl tbn tbp tbr tbs tbt tbu tda tdb tdd tde tdi tdl tdn tdp tdr tds tdt tdu te- tea teb ted tee tei tel ten tep ter tes tet teu tia tib tid tie tii til tin tip tir tis tit tiu tla tld tle tli tll tln tlp tlr tls tlt tlu tna tnb tnd tne tni tnl tnn tnp tnr tns tnt tpa tpb tpd tpe tpi tpl tpn tpp tpr tps tpt tpu tra trb trd tre tri trl trn trp trr trs trt tru tsa tsb tsd tse tsi tsl tsn tsp tsr tss tst tsu tta ttb ttd tte tti ttl ttn ttp ttr tts ttt ttu tua tub tud tue tui tul tun tup tur tus tut tuu ua- uaa uab uad uae uai ual uan uap uar uas uat uau uba ubb ube ubi ubl ubn ubp ubr ubs ubt ubu uda udb udd ude udi udl udn udp udr uds udt udu uea ueb ued uee uei uel uen uep uer ues uet uia uib uid uie uii uil uin uip uir uis uit uiu ula ulb uld ule uli ull uln ulp ulr uls ult ulu un- una unb und une uni unl unn unp unr uns unt unu up- upa upb upd upe upi upn upp upr ups upt upu ur- ura urb urd ure uri url urn urp urr urs urt uru usa usb usd use usi usl usn usp usr uss ust usu uta utb utd ute uti utl utn utp utr uts utt utu uua uue uun uur uus uut uuu