fff ffn ffo ffr ffw ffy fnf fnn fnr fnw fof fon foo for fow foy frf frn fro frr frw fry fwf fwn fwo fy- fyn fyo nff nfn nfo nfr nnf nnn nno nnw no- nof non noo nor now noy nrf nrn nro nrr nrw nry nwf nwn nwo nwr nyf nyn nyo nyy of- off ofn ofo ofr ofw on- onf onn ono onr ony oo- oof oon ooo oor oow or- orf orn oro orr ory owf own owo oww oyo rff rfn rfo rfr rfw rnn rno rnr rnw rny rof ron roo ror row roy rrf rrn rrr rwf rwr rwy ry- ryf ryn ryo ryr ryy wff wfn wfo wfr wfw wn- wnf wnn wno wnw wny wof won woo wor wow woy wr- wrf wrn wro wrr wrw wry wwf wwn wwo www wy- wyf wyn wyo wyr yff yfr ynn yny yof yon yoo yor yow yoy yrf yrn yro yyf yyy