dddd ddss dfds didi dido dids dif- diff difs diii diis dilf dili dill dilo dils diol dios dis- disd disi diso diss dlii dlil dlis dlos dod- dodd dodi dodo dods doff doid doil dois dold dolf doli doll dolo dols dood doof dool doos dosi doso doss dsif dsls dsos dssi fdos ffff ffii ffss fidf fido fids fiff fifi fifo fiii fiil fild fili fill filo fils fios fisd fisi fiss flid flii flis flod floo flos fofo foid foil fois fold foli foll folo fols food foof fool foos fosi foso foss fsfi fsfo fssf iddo idid idil idio idis idli idls idol idos idsf idso idss ifid ifil ifis ifso iiii iiio iiis iioi iioo iios iisd iisi ilio ilis ill- illd illi illo ills iloo ilos iod- iodd iodo ioii ioio iolo ioof iooi iooo ioos ioso isds isil isis isls iso- isof isol isos issf issi isso isss ldif ldls ldos lidl lido lids liff lifl lifo liii liis lili lill lilo lils lio- liod lios lisd lisi liso liss llds llll llod lloo lodi lods loff lofi loid loif lois lold loli loll lolo lols lood loof lool loos losi loso loss lsds lsid lsof lsso oddd oddi odds odio odis odoo odos odso off- offo offs ofid oido oids oiii oils oios oisd olds olfs olid olio olis olli ollo olof olos olsi oodi ooff oofs ooid oold oolo oooo ooos oosi osdi osii osis osli oslo osoi osoo osos ossd ossi osso s-ii s-os sdds sdif sdio sdls sdsf sdsl sdss sfio sfls sfos sfss sidd sidi sido sids siff sifl sifo sil- sild silf sili sill silo sils siod siol sios sisd sisi siss sl-i slds slid slod sloo slos sodd sodo sods sofi sofo soif soil sois sold solf soli soll solo sols sood soof sool soos sosi soso soss ssdd ssdf ssfl ssid ssis sssf sssi ssss