A man is fishing at dusk off of a rocky pier.
A man is swimming.
A man can't be swimming while fishing.
exists e1 s1 x1 x2 x3.(of(e1,x3) & n_pier(x3) & a_rocky(s1) & Theme(s1,x3) & r_off(e1) & at(e1,x2) & n_dusk(x2) & Actor(e1,x1) & v_fish(e1) & n_man(x1))
exists p1 x1.(exists x2.((x1 = x2) & n_swimming(x2)) & n_man(x1))