A woman runs beside a concrete wall.
She is grilling hamburgers at a birthday party.
A woman who runs beside a concrete wall can't be grilling hamburgers at a birthday party at the same instant.
exists e1 s1 x1 x2.(beside(e1,x2) & n_wall(x2) & a_concrete(s1) & Theme(s1,x2) & Actor(e1,x1) & v_run(e1) & n_woman(x1))
exists e1 x1 x2 x3.(at(e1,x1) & n_party(x1) & of(x1,x3) & n_birthday(x3) & Theme(e1,x2) & Actor(e1,x1) & v_grill(e1) & n_hamburger(x2) & n_female(x1))