Pigeons swarm all over a boy.
There are pigeons around a boy.
If pigeons swarm all over a boy then that implied there are pigeons around a boy.
exists e1 x1 x2.(r_all(e1) & over(e1,x2) & n_boy(x2) & Actor(e1,x1) & v_swarm(e1) & n_pigeon(x1))
exists p1 x1 x2 x3.((x1 = x2) & around(x2,x3) & n_boy(x3) & n_pigeon(x2))