A woman is mountain climbing with a light blue shirt on.
A person is hiking a mountain with a shirt on.
A woman is a person. "Mountain climbing" is a rephrasing of "hiking a mountain." Both are wearing shirts. These similarities show that they are the same person.
exists p1 x1.(exists e1 s1 s2 s3 x2 x3 x4.((x1 = x2) & a_on(s3) & Manner(e1,s3) & with(e1,x4) & n_shirt(x4) & a_blue(s2) & Theme(s2,x4) & a_light(s1) & Theme(s1,x4) & Actor(e1,x3) & v_climb(e1) & (x2 = x3) & n_mountain(x2)) & n_woman(x1))
exists e1 s1 x1 x2 x3.(a_on(s1) & Manner(e1,s1) & Theme(e1,x2) & Actor(e1,x1) & v_hike(e1) & with(x2,x3) & n_shirt(x3) & n_mountain(x2) & n_person(x1))