Young children on a sled are being pulled through the snow.
Young children as reading inside.
The children on a sled being pulled are outside so they are not reading inside.
exists e1 s1 x1 x2 x3.(n_snow(x3) & through(e1,x3) & Theme(e1,x1) & v_pull(e1) & on(x1,x2) & n_sled(x2) & n_child(x1) & a_young(s1) & Theme(s1,x1))
exists s1 x1 x2.(a_topic(x1) & as(x1,x2) & r_inside(x2) & n_reading(x2) & n_child(x1) & a_young(s1) & Theme(s1,x1))