Men and women strolling in the park on the sidewalk.
Young people are sunbathing at the park.
Strolling means walking while sunbathing is laying down.
exists e1 s1 x1 x2 x3 x4 x5.(n_sidewalk(x5) & n_park(x4) & a_topic(s1) & subset_of(x2,s1) & in(e1,x4) & on(x4,x5) & Actor(e1,x3) & v_stroll(e1) & (x2 = x3) & n_woman(x2) & subset_of(x1,s1) & n_man(x1))
exists e1 s1 x1 x2.(n_park(x2) & at(e1,x2) & Actor(e1,x1) & v_sunbathe(e1) & n_people(x1) & a_young(s1) & Theme(s1,x1))