He is working in the university lab.
He's taking a walk in the park.
Working and walking are not the same.
exists e1 x1 x2 x3.(n_lab(x2) & of(x2,x3) & n_university(x3) & n_male(x1) & in(e1,x2) & Actor(e1,x1) & v_work(e1))
exists e1 x1 x2 x3.(n_park(x3) & n_male(x1) & in(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_take(e1) & n_walk(x2))