A pelican in mid-flight above a group of pelicans.
A group of pelicans are flying.
Mid-flight and flying could mean the same thing.
exists x1 x2 x3 x4.(a_topic(x1) & in(x1,x2) & above(x2,x3) & of(x3,x4) & n_pelican(x4) & n_group(x3) & n_mid-flight(x2) & n_pelican(x1))
exists e1 x1 x2.(Actor(e1,x1) & v_fly(e1) & of(x1,x2) & n_pelican(x2) & n_group(x1))