tfv tfx tfz tfp tff tfw tft tfs tfr tfa zv zx zz zp zf zw zt zs zr za pv px pz pp pf pw pt ps pr pa fv fx fz fp ff fw ft fs fr fa wv wx wz wp wf ww wt ws wr wa tv tx tz tp tw tt ts tr ta sv sx sz sp sf sw st ss sr sa rv rx rz rp rf rw rt rs rr ra av ax az ap af aw at as ar aa v x