lpn lpo lpp lps lpu lsa lsb lsc lse lsf lsi lsl lsn lso lsp lss lsu lua lub luc lue luf lui lul lun luo lup lus luu n-i naa nab nac nae naf nai nal nan nao nap nas nau nba nbb nbc nbe nbf nbi nbl nbn nbo nbp nbs nbu nca ncb ncc nce ncf nci ncl ncn nco ncp ncs ncu ne- nea neb nec nee nef nei nel nen neo nep nes neu nfa nfb nfc nfe nff nfi nfl nfn nfo nfp nfs nfu nia nib nic nie nif nii nil nin nio nip nis niu nla nlb nlc nle nlf nli nll nln nlo nlp nls nlu nna nnb nnc nne nnf nni nnl nnn nno nnp nns nnu no- noa nob noc noe nof noi nol non noo nop nos nou npa npb npc npe npf npi npl npn npo npp nps npu nsa nsb nsc nse nsf nsi nsl nsn nso nsp nss nsu nua nub nuc nue nui nul nun nuo nup nus nuu o-i oaa oab oac oae oaf oai oal oan oao oap oas oau ob- oba obb obc obe obf obi obl obn obo obp obs obu oc- oca ocb occ ocf oci ocl ocn oco ocp ocs ocu oea oeb oec oee oef oei oel oen oeo oep oes of- ofa ofb ofc ofe off ofi ofl ofn ofo ofp ofs ofu oia oib oic oie oif oii oil oin oio oip ois oiu ola olb olc ole olf oli oll oln olo olp ols olu on- ona onb onc one onf oni onl onn ono onp ons onu oo- ooa oob ooc oof ooi ool oon ooo oop oos op- opa opb opc ope opf opi opl opn opo opp ops os- osa osb osc ose osf osi osl osn oso osp oss osu ou- oua ouc oue ouf oui oul oun ouo oup ous p-p paa pab pac pae paf pai pal pan pao pap pas pau pba pbb pbc pbe pbf pbi pbl pbn pbo pbp pbs pbu pca pcb pcc pce pcf pci pcl pcn pco pcp pcs pcu pea peb pec pee pef pei pel pen peo pep pes peu pfa pfb pfc pfe pff pfi pfl pfn pfo pfp pfs pfu pia pib pic pie pif pii pil pin pio pip pis piu pla plb plc ple plf pli pll pln plo plp pls plu pn- pna pnb pnc pne pnf pni pnl pnn pno pnp pns pnu poa pob poc poe pof poi pol pon poo pop pos pou ppa ppb ppc ppe ppf ppi ppl ppn ppo ppp pps ppu ps- psa psb psc pse psf psi psl psn pso psp pss psu pua pub puc pue puf pui pul pun pup pus puu saa sab sac sae saf sai sal san sao sap sas sau sba sbb sbc sbe sbf sbi sbl sbn sbo sbp sbs sbu sca scb scc sce scf sci scl scn sco scp scs scu se- sea seb sec see sef sei sel sen seo sep ses seu sfa sfb sfc sfe sff sfi sfl sfn sfo sfp sfs sfu sia sib sic sie sif sii sil sin sio sip sis siu sla slb slc sle slf sli sll sln slo slp sls slu sna snb snc sne snf sni snl snn sno snp sns snu soa sob soc soe sof soi sol son soo sop sos sou spa spb spc spe spf spi spl spn spo spp sps spu ss- ssa ssb ssc sse ssf ssi ssl ssn sso ssp sss ssu sua sub suc sue suf sui sul sun suo sup sus suu ua- uaa uab uac uae uaf uai ual uan uao uap uas uau uba ubb ubc ube ubf ubi ubl ubn ubo ubp ubs ubu uca ucb ucc uce ucf uci ucl ucn uco ucp ucs ucu uea ueb uec uee uef uei uel uen uep ues ufa ufc ufe uff ufi ufl ufn ufo ufp ufs ufu uia uib uic uie uif uii uil uin uio uip uis uiu ula ulb ulc ule ulf uli ull uln ulo ulp uls ulu un- una unb unc une unf uni unl unn uno unp uns unu uoa uob uoc uoe uol uon uoo uop uos up- upa upb upc upe upf upi upn upo upp ups upu usa usb usc use usf usi usl usn uso usp uss usu uua uuc uue uun uus uuu