Boy enjoys a day on the lake.
A boy is enjoying the outdoors.
A lake is outdoors.
exists e1 x1 x2 x3.(n_lake(x3) & ne_nam_boy(x1) & on(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_enjoy(e1) & n_day(x2))
exists e1 x1 x2.(n_outdoors(x2) & Theme(e1,x2) & Actor(e1,x1) & v_enjoy(e1) & n_boy(x1))