A man in a black shirt is taking pictures in a crowd.
A woman poses for pictures.
A man is not a woman. A person would not be taking pictures at the same time he or she poses for pictures.
exists e1 s1 x1 x2 x3 x4.(in(e1,x4) & n_crowd(x4) & Theme(e1,x3) & Actor(e1,x1) & v_take(e1) & n_picture(x3) & in(x1,x2) & n_shirt(x2) & a_black(s1) & Theme(s1,x2) & n_man(x1))
exists e1 x1 x2.(for(e1,x2) & n_picture(x2) & Actor(e1,x1) & v_pose(e1) & n_woman(x1))