The person is wearing shorts and climbing a gray sand hill under a blue sky.
A man is skiing down a slope.
A person does not just describe a man, a person can be a woman as well.
exists e1 e2 s1 s2 x1 x2 x3 x4 x5.(n_person(x1) & under(e2,x5) & n_sky(x5) & a_blue(s2) & Theme(s2,x5) & Theme(e2,x3) & Actor(e2,x1) & v_climb(e2) & n_hill(x3) & of(x3,x4) & n_sand(x4) & a_gray(s1) & Theme(s1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_wear(e1) & n_shorts(x2))
exists e1 s1 x1 x2.(a_down(s1) & Manner(e1,s1) & Theme(e1,x2) & Actor(e1,x1) & v_ski(e1) & n_slope(x2) & n_man(x1))