A female in blue is jumping over a hurdle, while two people photograph her.
Nobody is jumping.
The statement of nobody jumping is untrue if  a female is in fact jumping.
exists e1 p1 s1 x1 x2 x3.(exists e2 x4.(Theme(e2,x1) & Actor(e2,x4) & v_photograph(e2) & n_people(x4) & card_eq_2(x4)) & n_female(x1) & while(e1,p1) & a_over(s1) & Manner(e1,s1) & Theme(e1,x3) & Actor(e1,x1) & v_jump(e1) & n_hurdle(x3) & in(x1,x2) & n_blue(x2) & n_female(x1))
-exists e1 x1.(Actor(e1,x1) & v_jump(e1) & n_person(x1))