Two competitors, one with number thirteen on his headgear, are at battle in a large swimming pool.
Nobody is competing.
There cannot be two competitors and nobody competing at the same time.
exists e1 p1 x1 x2 x3 x4 x5.(exists s1 x6 x7 x8.(at(x1,x6) & in(x6,x7) & n_pool(x7) & of(x7,x8) & n_swimming(x8) & a_large(s1) & Theme(s1,x7) & n_battle(x6)) & rel(x1,x2) & with(x2,x3) & on(e1,x5) & n_headgear(x5) & of(x5,x3) & n_male(x3) & Theme(e1,x4) & v_thirteen(e1) & (x3 = x4) & n_number(x3) & n_thing(x2) & card_eq_1(x2) & n_competitor(x1) & card_eq_2(x1))
-exists e1 x1.(Actor(e1,x1) & v_compete(e1) & n_person(x1))