A child is riding a unicycle along a riverside path next to a woman who is walking a dog.
The woman and child are a mother and son.
It cannot be inferred that the woman and child are mother and son.
exists e1 e2 s1 x1 x2 x3 x4 x5 x6 x7.(along(e1,x3) & to(x4,x5) & Theme(e2,x7) & Actor(e2,x6) & v_walk(e2) & n_dog(x7) & (x5 = x6) & n_woman(x5) & next(x3,x4) & n_thing(x4) & n_path(x3) & a_riverside(s1) & Theme(s1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & n_unicycle(x2) & n_child(x1))
exists p1 x1 x2 x3.(n_child(x3) & n_woman(x2) & subset_of(x3,x1) & subset_of(x2,x1) & exists x4 x5 x6.((x1 = x4) & n_son(x6) & n_mother(x5) & subset_of(x6,x4) & subset_of(x5,x4)))