man dragging a boat through the mud.
A man paddling his boat.
The man can't be dragging a boat while paddling his boat.
exists e1 x1 x2 x3 x4.(n_mud(x4) & a_topic(x1) & through(e1,x4) & Theme(e1,x3) & Actor(e1,x2) & v_drag(e1) & n_boat(x3) & (x1 = x2) & n_man(x1))
exists e1 x1 x2 x3.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_paddle(e1) & n_boat(x3) & of(x3,x1) & n_male(x1) & (x1 = x2) & n_man(x1))