Two kids in jeans perform skateboard tricks.
Two children sitting on a park bench.
One pair is sitting. The other is proforming tricks
exists e1 x1 x2 x3 x4.(Theme(e1,x3) & Actor(e1,x1) & v_perform(e1) & n_trick(x3) & of(x3,x4) & n_skateboard(x4) & in(x1,x2) & n_jeans(x2) & n_kid(x1) & card_eq_2(x1))
exists e1 x1 x2 x3 x4.(a_topic(x1) & on(e1,x3) & n_bench(x3) & of(x3,x4) & n_park(x4) & Actor(e1,x2) & v_sit(e1) & (x1 = x2) & n_child(x1) & card_eq_2(x1))