A pair of adults stand outside with a young child who has an old-fashioned tricycle.
Parents watch their child ride her tricycle.
We have no idea if the adults her the children's parents, and we have no idea if the child is their child, it could be anyone.
exists e1 e2 s1 s2 x1 x2 x3 x4 x5.(with(e1,x3) & Theme(e2,x5) & Actor(e2,x4) & v_have(e2) & n_tricycle(x5) & a_old-fashioned(s2) & Theme(s2,x5) & (x3 = x4) & n_child(x3) & a_young(s1) & Theme(s1,x3) & r_outside(e1) & Actor(e1,x1) & v_stand(e1) & of(x1,x2) & n_adult(x2) & n_pair(x1))
exists e1 e2 x1 x2 x3 x4.(Theme(e2,x4) & Actor(e2,x1) & v_ride(e2) & n_tricycle(x4) & of(x4,x1) & n_female(x1) & Theme(e1,x3) & Actor(e1,x2) & v_watch(e1) & n_child(x3) & of(x3,x1) & n_thing(x1) & (x1 = x2) & n_parent(x1))