A SCUBA diver swimming deep underwater with a turtle.
The diver is on top of a mountain skiing.
A person cannot be swimming and skiing at the same time.
exists s1 x1 x2 x3 x4 x5.(a_topic(x1) & with(x1,x5) & n_turtle(x5) & n_underwater(x1) & a_deep(s1) & Theme(s1,x1) & of(x1,x4) & n_swimming(x4) & of(x1,x3) & n_diver(x3) & (x1 = x2) & ne_nam_scuba(x2))
exists p1 x1.(n_diver(x1) & exists x2 x3 x4.(on(x1,x2) & of(x2,x3) & n_skiing(x3) & of(x3,x4) & n_mountain(x4) & n_top(x2)))