A child is rock climbing while wearing a white safety helmet, white shirt, blue jacket, blue jeans and white sneakers.
Someone is climbing a wall of rocks
Someone could be a child.  Someone could be wearing a white safety helmet, white shirt, blue jacket, blue jeans, and white sneakers.
exists p1 x1.(exists e1 e2 s1 s2 s3 s4 s5 x2 x3 x4 x5 x6 x7 x8 x9 x10 x11 x12 x13.((x1 = x2) & while(e1,e2) & Theme(e2,x4) & Actor(e2,x3) & v_wear(e2) & n_sneaker(x13) & a_white(s5) & Theme(s5,x13) & n_jeans(x12) & subset_of(x13,x11) & subset_of(x12,x11) & a_blue(s4) & Theme(s4,x11) & n_jacket(x10) & a_blue(s3) & Theme(s3,x10) & subset_of(x11,x9) & subset_of(x10,x9) & n_shirt(x8) & a_white(s2) & Theme(s2,x8) & subset_of(x9,x6) & subset_of(x8,x6) & n_helmet(x5) & of(x5,x7) & n_safety(x7) & a_white(s1) & Theme(s1,x5) & subset_of(x6,x4) & subset_of(x5,x4) & Actor(e1,x3) & v_climb(e1) & (x2 = x3) & n_rock(x2)) & n_child(x1))
exists e1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_climb(e1) & of(x2,x3) & n_rock(x3) & n_wall(x2) & n_person(x1))