A younger woman and older man run on treadmills.
A young physical therapist and her patient on running on treadmills.
The woman and man might not be a physical therapist and patient.
exists s1 s2 s3 x1 x2 x3 x4.(a_topic(s1) & on(s1,x4) & n_treadmill(x4) & n_run(x2) & of(x2,x3) & n_man(x3) & r_more(s3) & a_older(s3) & Theme(s3,x2) & n_woman(x1) & subset_of(x2,s1) & subset_of(x1,s1) & r_more(s2) & a_younger(s2) & Theme(s2,s1))
exists e1 s1 s2 s3 x1 x2 x3 x4.(a_topic(s1) & subset_of(x2,s1) & on(e1,x4) & n_treadmill(x4) & Actor(e1,x3) & v_run(e1) & (x2 = x3) & n_patient(x2) & of(x2,x1) & n_female(x1) & subset_of(x1,s1) & n_therapist(x1) & a_physical(s3) & Theme(s3,x1) & a_young(s2) & Theme(s2,x1))