Two sumo wrestlers wrestling in a sand ring.
Sumo wrestlers are eating.
you cannot be wrestling while eating.
exists e1 x1 x2 x3 x4 x5.(a_topic(x1) & in(e1,x4) & n_ring(x4) & of(x4,x5) & n_sand(x5) & Actor(e1,x3) & v_wrestle(e1) & (x1 = x3) & n_wrestler(x1) & of(x1,x2) & n_sumo(x2) & card_eq_2(x1))
exists e1 x1 x2.(Actor(e1,x1) & v_eat(e1) & n_wrestler(x1) & (x1 = x2) & ne_nam_sumo(x2))