The man in a blue sweater is climbing down the rocks
The man is going up the rocks.
Someone cannot be climbing down the rocks and going up the rocks at the same time.
exists e1 s1 s2 x1 x2 x3.(n_rock(x3) & n_man(x1) & a_down(s2) & Manner(e1,s2) & Theme(e1,x3) & Actor(e1,x1) & v_climb(e1) & in(x1,x2) & n_sweater(x2) & a_blue(s1) & Theme(s1,x2))
exists e1 s1 x1 x2.(n_rock(x2) & n_man(x1) & a_up(s1) & Manner(e1,s1) & Theme(e1,x2) & Actor(e1,x1) & v_go(e1))