Boy Scouts are taking a hike.
people are walking.
Walking rephrases taking a hike.
exists e1 x1 x2 x3.(ne_nam_scouts(x1) & (x1 = x2) & ne_nam_boy(x2) & Theme(e1,x3) & Actor(e1,x1) & v_take(e1) & n_hike(x3))
exists e1 x1.(Actor(e1,x1) & v_walk(e1) & n_people(x1))