A group of people walking on the train station.
Women doing yoga.
One cannot be walking and doing yoga simultaneously.
exists e1 x1 x2 x3 x4 x5.(n_station(x4) & of(x4,x5) & n_train(x5) & a_topic(x1) & of(x1,x2) & on(e1,x4) & Actor(e1,x3) & v_walk(e1) & (x2 = x3) & n_people(x2) & n_group(x1))
exists e1 x1 x2 x3.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_do(e1) & n_yoga(x3) & (x1 = x2) & n_woman(x1))