A man paddles a canoe accompanied by a dog.
A man and his dog go canoeing together.
A man paddles a canoe accompanied by his dog implies that a man goes canoeing with his dog.
exists e2 e1 x1 x2 x3 x4.(Theme(e2,x2) & Actor(e2,x1) & v_paddle(e2) & Actor(e1,x4) & n_dog(x4) & Theme(e1,x3) & v_accompany(e1) & (x2 = x3) & n_canoe(x2) & n_man(x1))
exists e1 p1 x1 x2 x3.(exists e2 p2.(exists s1.(Theme(s1,x1) & a_together(s1)) & Topic(e2,p2) & Actor(e2,x1) & v_canoe(e2)) & Topic(e1,p1) & Actor(e1,x1) & v_go(e1) & subset_of(x3,x1) & n_dog(x3) & of(x3,x2) & n_male(x2) & subset_of(x2,x1) & n_man(x2))