people taking pictures of a crazy person.
People are riding a bus minding their own business.
If one is minding their own business, they are not taking pictures of a person.
exists e1 s1 x1 x2 x3 x4.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_take(e1) & of(x3,x4) & n_person(x4) & a_crazy(s1) & Theme(s1,x4) & n_picture(x3) & (x1 = x2) & n_people(x1))
exists e1 e2 s1 x1 x2 x3.(for(e1,e2) & Theme(e2,x3) & Actor(e2,x1) & v_mind(e2) & n_business(x3) & a_own(s1) & Theme(s1,x3) & of(x3,x1) & n_thing(x1) & Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & n_bus(x2) & n_people(x1))