nrm nrn nro nrp nrr nrs nrt nsa nse nsf nsi nsl nsm nsn nso nsp nsr nss nst nta nte ntf nti ntm ntn nto ntp ntr nts ntt o-i oaa oae oaf oai oal oam oan oao oap oar oas oat oea oee oef oei oel oem oen oeo oep oer oes oet of- ofa ofe off ofi ofl ofm ofn ofo ofp ofr ofs oft oia oie oif oii oil oim oin oio oip oir ois oit ola ole olf oli oll olm oln olo olp ols olt om- oma ome omf omi oml omm omn omo omp omr oms omt on- ona one onf oni onl onn ono onp onr ons ont oo- ooa oof ooi ool oom oon ooo oop oor oos oot op- opa ope opf opi opl opm opn opo opp opr ops opt or- ora ore orf ori orl orm orn oro orp orr ors ort os- osa ose osf osi osl osm osn oso osp osr oss ost ot- ota ote otf oti otl otm otn oto otp otr ots ott p-p paa pae paf pai pal pam pan pao pap par pas pat pea pee pef pei pel pem pen peo pep per pes pet pfa pfe pff pfi pfl pfm pfn pfo pfp pfr pfs pft pia pie pif pii pil pim pin pio pip pir pis pit pla ple plf pli pll plm pln plo plp plr pls plt pma pme pmf pmi pml pmm pmn pmo pmp pmr pms pmt pn- pna pne pnf pni pnl pnm pnn pno pnp pnr pns pnt poa poe pof poi pol pom pon poo pop por pos pot ppa ppe ppf ppi ppl ppm ppn ppo ppp ppr pps ppt pra pre prf pri prl prm prn pro prp prr prs prt ps- psa pse psf psi psl psm psn pso psp psr pss pst pt- pta pte ptf pti ptl ptm ptn pto ptp ptr pts ptt ra- raa rae raf rai ral ram ran rao rap rar ras rat re- rea ree ref rei rel rem ren reo rep rer res ret rfa rfe rff rfi rfl rfm rfn rfo rfp rfr rfs rft ria rie rif rii ril rim rin rio rip rir ris rit rla rle rlf rli rll rlm rln rlo rlp rlr rls rlt rma rme rmf rmi rml rmm rmn rmo rmp rmr rms rmt rna rni rnm rnn rno rnp rnr rns rnt roa roe rof roi rol rom ron roo rop ror ros rot rpa rpe rpf rpi rpl rpm rpn rpo rpp rpr rps rpt rra rrf rri rrl rrm rrn rrp rrr rrs rrt rsa rse rsf rsi rsl rsm rsn rso rsp rsr rss rst rta rte rtf rti rtl rtm rtn rto rtp rtr rts rtt saa sae saf sai sal sam san sao sap sar sas sat se- sea see sef sei sel sem sen seo sep ser ses set sfa sfe sff sfi sfl sfm sfn sfo sfp sfr sfs sft sia sie sif sii sil sim sin sio sip sir sis sit sla sle slf sli sll slm sln slo slp slr sls slt sma sme smf smi sml smm smn smo smp smr sms smt sna sne snf sni snl snm snn sno snp snr sns snt soa soe sof soi sol som son soo sop sor sos sot spa spe spf spi spl spm spn spo spp spr sps spt sr- sra sre srf sri srl srm srn sro srp srr srs srt ss- ssa sse ssf ssi ssl ssm ssn sso ssp ssr sss sst sta ste stf sti stl stm stn sto stp str sts stt taa tae taf tai tal tam tan tao tap tar tas tat te- tea tee tef tei tel tem ten teo tep ter tes tet tfa tfe tff tfi tfl tfm tfn tfo tfp tfr tfs tft tia tie tif tii til tim tin tio tip tir tis tit tla tle tlf tli tll tlm tln tlo tlp tlr tls tlt tma tme tmf tmi tml tmm tmn tmo tmp tmr tms tmt tna tne tnf tni tnl tnm tnn tno tnp tnr tns tnt to- toa toe tof toi tol tom ton too top tor tos tot tpa tpe tpf tpi tpl tpm tpn tpo tpp tpr tps tpt tra tre trf tri trl trm trn tro trp trr trs trt tsa tse tsf tsi tsl tsm tsn tso tsp tsr tss tst tta tte ttf tti ttl ttm ttn tto ttp ttr tts ttt