One man in a blue jacket is skiing while another one is taking a picture of the mountains behind them.
Both men are skiing.
One is not taking a picture while also skiing.
exists e1 p1 s1 x1 x2 x5.(n_mountain(x5) & exists e2 x3 x4.(Theme(e2,x4) & Actor(e2,x3) & v_take(e2) & of(x4,x5) & behind(x5,x1) & n_picture(x4) & n_thing(x3) & card_eq_1(x3) & -(x3 = x1)) & n_thing(x1) & card_eq_1(x1) & card_eq_1(x1) & while(e1,p1) & Actor(e1,x1) & v_ski(e1) & in(x1,x2) & n_jacket(x2) & a_blue(s1) & Theme(s1,x2) & n_man(x1))
exists p1 x1.(n_man(x1) & exists x2.((x1 = x2) & n_skiing(x2)))