A man operates a small piece of equipment.
A woman is using a computer
A man is not the same as a woman.
exists e1 s1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_operate(e1) & of(x2,x3) & n_equipment(x3) & n_piece(x2) & a_small(s1) & Theme(s1,x2) & n_man(x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_use(e1) & n_computer(x2) & n_woman(x1))