A man is wading in a river and casting out a rope.
A man throws a rope from the river.
Casting and throws share the same meaning in this context.
exists e2 e1 s1 x1 x2 x3 x4.(a_out(s1) & Manner(e2,s1) & Theme(e2,x4) & Actor(e2,x3) & v_cast(e2) & n_rope(x4) & n_man(x3) & in(e1,x2) & n_river(x2) & Actor(e1,x1) & v_wade(e1) & n_man(x1))
exists e1 x1 x2 x3.(n_river(x3) & from(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_throw(e1) & n_rope(x2) & n_man(x1))