The keyboard is white
A white keyboard is displayed
If a keyboard is colored white then it can be said that the keyboard is white.
exists s1 x1.(n_keyboard(x1) & Theme(s1,x1) & a_white(s1))
exists e1 s1 x1.(Theme(e1,x1) & v_display(e1) & n_keyboard(x1) & a_white(s1) & Theme(s1,x1))