two guys riding bikes together
The two guys were excersising together
Just because two guys are riding bikes together doesn't imply they are excersising together.
exists e1 s1 x1 x2 x3.(a_topic(x1) & a_together(s1) & Manner(e1,s1) & Theme(e1,x3) & Actor(e1,x2) & v_ride(e1) & n_bike(x3) & (x1 = x2) & n_guy(x1) & card_eq_2(x1))
exists e1 p1 x1.(n_guy(x1) & card_eq_2(x1) & exists s1.(Theme(s1,x1) & a_together(s1)) & Topic(e1,p1) & Actor(e1,x1) & v_excersise(e1))