ffff ffps ffrr ffss fftf floo flop flor flos flot flts fofo foll folo folr fols folt foof fool foos foot fopp fops for- forl foro forr fors fort foso foss fost foto fotp fots fott fprf frol frop fros frot frps frso frst fsfo fspf fssf fssp ft-l ftop ftos ftps ftrs ftsr lftp lfts llll lloo llps loff loft loll lolo lols loof lool loop loor loos loot lopp lops loro lors loso losp loss lost lotl loto lotr lots lott lpfp lpft lppl lprp lpss lrps lrrr lrst lrts ls-r lsof lspl lspr lsso lssp lssr lsts ltps ltrs ltsp ltsr lttr off- offo offr offs ofor ofst oftp olfs ollo olof olor olos olot olst ooff oofs oolo oooo ooos oops oort oost ootp oots opls opo- opor opos oppo opps opto opts orff orfs orlo oro- orof oror oros orot orps orro orrs orso orto orts oslo osoo osor osos osro osso ostr osts otfp oto- otof otoo otor otos otpp otro otrs otso otto otts pfff pffr pfft pfps plff ploo plop plos plot plpp plss pltf pltt poff poll polo pols polt poof pool poop poor poos poot pop- popo popp pops popt poro porr pors port poso poss post potf poto pots pott pplo ppos pppo pppp ppps pprf ppsf ppss ppts pptt prfs prlr prls pro- prof prol proo prop pros prot prps prrs prsl prso prss prtp prtr psfs psol psos pspp pspr psps psrp psso psst psts ptol ptop ptrf rffl rlls roff rofl rofo rolf roll rolo rolp rolt roof rool roop roor roos root ropo rops roro rort roso rosp ross rost rotl roto rotr rots rott rpls rpof rpos rpps rpts rrrr rrsp rslp rsos rspo rsps rssl rstp rsts rtls rtlt rtps rtss rttp rtts s-os sfls sfor sfos sfro sfss sftp sfts slft sllp sloo slop slos slot slpp slps slrp slrs slst slts sofo soft solf soll solo solp solr sols solt soof sool soop soor soos soot sopo sopp sops soro sorr sors sort soso soss sost sotl soto sotp sots spfs splo splp splr spls spoo spop spor spos spot sppf spps spro sprs spso spsp spss spst spto sptr spts sros srps srpt srsp srtp srtr ssfl ssfp sslp sslt ssop ssot sspf sspl sspo ssps sspt ssrl ssrs sssf ssss sstl sstp ssts stlo stlt stof stol stoo stop stor stos stot stpf stpp stps stro strs stsf stss sttr tfot tfpt tfrs tfss tftp tlos tlrs toff tofo toft tol- toll tolo tolt toof tool toor toos toot top- topf topo topp tops topt torf toro torp torr tors tort toso toss tost toto totr tots tott tpls tpol tppp tppr tprs tptp tptr trfr troo trop tros trot trpp trps trst trtr tsfl tsol tsop tsos tspo tsps tspt tssf tssr tsst tsts ttff ttop ttss tttt