ffff ffhs ffii ffss fftf fhfs fhhs fhit fhss fiff fifi fifo fift fiii fios fish fisi fiss fist fiti fits fitt fofo fohs fois foof foos foot fosh fosi foso foss fost foth foti foto fots fott fsfi fsfo fshs fssf fths ftii ftos h-ii hfhs hfss hhhh hhhs hhof hiff hifh hifi hifo hihi hiho hiht hiis hiit hish hiss hist hiti hito hits hitt hoff hofs hoho hoif hois hoit hoof hoos hoot hosh hoss host hoth hoti hoto hots hott hsfs hshs hsts hths htoh ifht ifis ifit ifso ifto ihis ihit ihss iiht iiii iiio iiis iiit iioi iioo iios iisi iist iitt ioii ioio ioit ioof iooi iooo ioos ioso iotf ioto ishi ishs isis isit iso- isof isos issf issh issi isso isss isth isti isto ists iths itif itis itof itoh itoi itoo itos itsf itsi itso ittf itto off- offh offo offs ofit ofst ohhi ohho ohhs ohif ohio ohis ohoh ohos ohso ohss ohto oiii oios oist oiti ooff oofs ooho oohs oooh oooo ooos oosi oost oots oshi osho oshs osii osis osoi osoo osos ossi osso osti osts otho oths otif otis otit oto- otof otoh otoo otos otso otti otto otts s-ii s-os sfhs sfio sfos sfss sfts shft shhh shhs shih shii shio shis shit shof shoo shos shot shts siff sifo sift sihi sihs siht siit sios siot sish sisi siss sist sit- sith siti sito sits sitt sofi sofo soft sohh soho sohs soif sois soit soof soos soot sosh sosi soso soss sost soth soto sots sshs ssis ssit ssot sssf sssh sssi ssss ssth ssts sths stif stih stio stis stit stof stoo stos stot stsf stsi stss tfot tfsi tfss thi- thif thio this thof thoo thos thot thss thts tiff tifo tift tiht tiit tios tish tisi tiso tiss tist tith titi tito tits titt toff tofi tofo toft tohi toho tois toit toof tooh toos toot tosh tosi toso toss tost toth toti toto tots tott tshi tshs tsis tsoi tsos tssf tssi tsst tsts ttff ttss tttt