The man is looking out over a placid lake.
A man is rowing a boat on a lake.
If the man is rowing a boat, the lake is not placid, as rowing a boat causes ripples.
exists e1 s1 x1 x2 x3.(n_man(x1) & a_out(s1) & Manner(e1,s1) & over(e1,x2) & n_lake(x2) & of(x2,x3) & n_placid(x3) & Actor(e1,x1) & v_look(e1))
exists e1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_row(e1) & on(x2,x3) & n_lake(x3) & n_boat(x2) & n_man(x1))