The gummy bears on the cake are green, orange, yellow, and red in color. 
There are two green gummy bears on the cake.
There could be any number of gummy bears on the cake, not just two.
exists e1 s1 x1 x2 x3 x4 x5 x6 x7 x8.(n_cake(x3) & n_gummy(x1) & on(e1,x2) & subset_of(x7,x2) & in(x7,x8) & n_color(x8) & n_red(x7) & subset_of(x3,x2) & rel(s1,x5) & rel(x5,x6) & n_yellow(x6) & n_orange(x5) & Theme(s1,x4) & a_green(s1) & (x3 = x4) & Actor(e1,x1) & v_bear(e1))
exists p1 x1 x3.(n_cake(x3) & exists s1 s2 x2.((x1 = x2) & on(x2,x3) & n_bear(x2) & a_gummy(s2) & Theme(s2,x2) & a_green(s1) & Theme(s1,x2) & card_eq_2(x2)))