A woman looks at a map while a man takes a picture.
the man takes a picture of his son.
A woman is female and a man is male and you cannot be both sexes at once.
exists e1 p1 x1 x2.(exists e2 x3 x4.(Theme(e2,x4) & Actor(e2,x3) & v_take(e2) & n_picture(x4) & n_man(x3)) & while(e1,p1) & at(e1,x2) & n_map(x2) & Actor(e1,x1) & v_look(e1) & n_woman(x1))
exists e1 x1 x2 x3.(n_son(x3) & of(x3,x1) & n_male(x1) & n_man(x1) & Theme(e1,x2) & Actor(e1,x1) & v_take(e1) & of(x2,x3) & n_picture(x2))