Someone is trying to take a picture at a convention.
it a sports convention
There is no indication that it is a sports convention
exists e1 p1 x1.(Topic(e1,p1) & Actor(e1,x1) & v_try(e1) & exists e2 x2 x3.(Theme(e2,x2) & Actor(e2,x1) & v_take(e2) & at(x2,x3) & n_convention(x3) & n_picture(x2)) & n_person(x1))
all x2 x1.((n_thing(x2) & n_convention(x1) & of(x1,x2) & n_sport(x2)) -> (a_topic(x2) & for(x2,x1)))