Teenagers having a barbecue in the park grilling some food.
A group of kids are cooking at the park.
Teenagers are kids, and cooking is grilling.
exists e2 e1 x1 x2 x3 x4 x5.(n_park(x3) & ne_nam_teenagers(x1) & Theme(e2,x2) & Actor(e2,x1) & v_have(e2) & in(x2,x3) & Theme(e1,x5) & Actor(e1,x4) & v_grill(e1) & n_food(x5) & (x3 = x4) & n_barbecue(x2))
exists e1 x1 x2 x3.(n_park(x3) & at(e1,x3) & Actor(e1,x1) & v_cook(e1) & of(x1,x2) & n_kid(x2) & n_group(x1))