A child holding a helium filled balloon is standing in front of what appears to be a construction site.
A child's balloon floats away as they stand in front of a bank.
A balloon must either be held or it is floats away, it cannot be both. A bank and a construction site look very different, it has to be one or the other.
exists e1 e2 e3 x1 x2 x3 x4 x5 x6.(exists e4 p1 x7.(n_thing(x7) & in(e3,x6) & of(x6,x7) & Topic(e4,p1) & Actor(e4,x7) & v_appear(e4) & exists p2 x8 x9.((x7 = x8) & n_site(x8) & of(x8,x9) & n_construction(x9))) & n_front(x6) & Actor(e3,x1) & v_stand(e3) & Theme(e2,x3) & Actor(e2,x2) & v_hold(e2) & Time(e1,x5) & n_balloon(x5) & Theme(e1,x4) & v_fill(e1) & (x3 = x4) & n_helium(x3) & (x1 = x2) & n_child(x1))
exists e1 p1 p2 x1 x2.(exists e2 x3 x4.(in(e2,x3) & of(x3,x4) & n_bank(x4) & n_front(x3) & Actor(e2,x1) & v_stand(e2)) & n_thing(x1) & as(e1,p2) & exists s1.(Theme(s1,x2) & a_away(s1)) & Topic(e1,p1) & Actor(e1,x2) & v_float(e1) & n_balloon(x2) & of(x2,x1) & n_child(x1))