A boy in a long-sleeved shirt and long pants is on the beach.
The beach is populated.
Just because the boy is on a beach doesn't mean it's populated.
exists p1 s1 s2 x1 x2 x3 x4 x5.(n_beach(x5) & on(x1,x5) & in(x1,x2) & subset_of(x4,x2) & n_pants(x4) & a_long(s2) & Theme(s2,x4) & subset_of(x3,x2) & n_shirt(x3) & a_long-sleeved(s1) & Theme(s1,x3) & n_boy(x1))
exists e1 x1.(n_beach(x1) & Theme(e1,x1) & v_populate(e1))