A group of runners run through the park in the winter.
A collection of people are exercising.
A group of runners can be considered a collection of people and one way to exercise is to run.
exists e1 x1 x2 x3 x4 x5.(n_winter(x5) & n_park(x4) & a_topic(x1) & in(e1,x5) & through(e1,x4) & Theme(e1,x3) & v_run(e1) & (x1 = x3) & of(x1,x2) & n_runner(x2) & n_group(x1))
exists e1 x1 x2.(Actor(e1,x1) & v_exercise(e1) & of(x1,x2) & n_people(x2) & n_collection(x1))