A young boy with glasses is kayaking in calm waters near a large tree.
A boy is kayaking.
The first sentence is a more detailed description of the second- it is rephrased to include less detail in sentence 2.
exists e1 s1 s2 s3 x1 x2 x3 x4.(in(e1,x3) & near(x3,x4) & n_tree(x4) & a_large(s3) & Theme(s3,x4) & n_waters(x3) & a_calm(s2) & Theme(s2,x3) & Actor(e1,x1) & v_kayake(e1) & with(x1,x2) & n_glass(x2) & n_boy(x1) & a_young(s1) & Theme(s1,x1))
exists e1 x1.(Actor(e1,x1) & v_kayake(e1) & n_boy(x1))