Two children in casual clothing are lying in the grass on a sunny day.
The sun is shining on the children
Sun is shining is another way of saying it's sunny.
exists e1 s1 s2 x1 x2 x3 x4.(n_grass(x3) & on(e1,x4) & n_day(x4) & a_sunny(s2) & Theme(s2,x4) & in(e1,x3) & Actor(e1,x1) & v_lie(e1) & in(x1,x2) & n_clothing(x2) & a_casual(s1) & Theme(s1,x2) & n_child(x1) & card_eq_2(x1))
exists e1 x1 x2.(n_child(x2) & n_sun(x1) & on(e1,x2) & Actor(e1,x1) & v_shine(e1))