A shirtless man is climbing a mountain.
The shirtless man is sitting at a desk.
Sitting at a desk and climbing a mountain are different activities that cannot be done at the same time.
exists e1 s1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_climb(e1) & n_mountain(x2) & n_man(x1) & a_shirtless(s1) & Theme(s1,x1))
exists e1 s1 x1 x2.(n_man(x1) & a_shirtless(s1) & Theme(s1,x1) & at(e1,x2) & n_desk(x2) & Actor(e1,x1) & v_sit(e1))