Man climbing a steep snow-covered slope.
the man is a professional climber.
Just because the man is climbing does not mean he a professional climber.
exists e1 s1 s2 x1 x2 x3.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_climb(e1) & n_slope(x3) & a_snow-covered(s2) & Theme(s2,x3) & a_steep(s1) & Theme(s1,x3) & (x1 = x2) & n_man(x1))
exists p1 x1.(n_man(x1) & exists s1 x2.((x1 = x2) & n_climber(x2) & a_professional(s1) & Theme(s1,x2)))