Two men are taking pictures while standing beside an automobile.
The men are taking pictures of a car wreck.
Not all men are groups of two.  Not all men taking pictures are at a car wreck.
exists e1 e2 x1 x2 x3.(while(e1,e2) & beside(e2,x3) & n_automobile(x3) & Actor(e2,x1) & v_stand(e2) & Theme(e1,x2) & Actor(e1,x1) & v_take(e1) & n_picture(x2) & n_man(x1) & card_eq_2(x1))
exists e1 x1 x2 x3 x4.(n_man(x1) & of(e1,x3) & n_wreck(x3) & of(x3,x4) & n_car(x4) & Theme(e1,x2) & Actor(e1,x1) & v_take(e1) & n_picture(x2))