nfff nfra nfrs nfsr nlcc nlcf nlcs nlec nler nlls nlra nlsc nnes nnls nnnn nnsa nnsl nnss nras nrca nrcs nren nrfc nrna nrrc nrrl nrsa nrsc nsaa nsac nsar nsca nscc nscl nscs nsec nsel nser nsfc nsfs nsla nslr nsls nsna nsnr nsra nsrc nsrl nssa nssc nsse nssf nssr nsss raaf raan raas rac- raca racc race racs raec raef rael raen raer raes rafa rafc rafe raff rala rale ralf rall rana ranc rane rann rans rara rare rarf rars rasa rasc rase rasl rass rcac rcaf rcas rccc rccs rcfc rcle rcls rcnl rcnr rcsa rcsc rcsl rcss rea- reac reae reaf real rean rear reas reca recc rece recr recs reef reel reen rees refe reff refl refn refr refs rela rele rell rels rena rene renn rens rera rere rers resa rese resn ress rfae rfef rffc rffl rlcs rlee rlef rlls rnaf rnal rnas rncs rras rrfc rrle rrna rrrr rsaa rsaf rscc rscn rscs rsee rsfc rslc rsna rsnn rsnr rsre rssa rssl sa-c saac saae saaf saal saan saar saas saca sacc sace sacn sacr sacs sael saen saer saes safa safc safe saff safr sala salc sale salf sall sals sana sane sann sanr sans sara sarc sare sarf sarl sarn sarr sars sasa sasc sase sasf sasl sass scaa scac scaf scal scan scar scas sccc scce sccl sccs scea scec scee scel scer scfa scfc scfe scl- sclc scls scna scnr scr- scra scrc scre scrn scrs scsa scsc scsl scsn scsr se-c se-e se-f se-n se-s seaa seac seaf seal sean sear seas sec- seca secc sece secn secr secs seea seec seef seel seen seer sees sefa seff sefl sela sele self sell sels sena sene senn senr sens sera serc sere serf sern serr sers sesa sesc sese sess sfar sfas sfca sfcc sfcs sfer sffc sfla sflc sfls sfne sfra sfrc sfss slaa slac slae slaf slan slas slcc slea slee sler sles slln slrc slre slrn slrs slsa slsc snar snas snca sncc sncf snee snel sner snes snla snlf snns snra snrs sraf sras srcc srec sres srfc srna srnn ssaa ssac ssan ssas ssca sscc ssce sscs ssec ssee sses ssfc ssfl ssla sslc ssle ssns ssra ssrc ssrl ssrs sssa sssc sssf ssss