A group of motorcyclists riding down the street.
A motorcycle gang is going to their hideout.
Just because they are a group of motorcyclists does not imply they are a gang. Just because they are riding together does not mean they are going to a hideout.
exists e1 x1 x2 x3 x4.(n_street(x4) & a_topic(x1) & down(e1,x4) & Actor(e1,x3) & v_ride(e1) & (x1 = x3) & of(x1,x2) & n_motorcyclist(x2) & n_group(x1))
exists e1 x1 x2 x3.(to(e1,x3) & n_hideout(x3) & of(x3,x1) & n_thing(x1) & Actor(e1,x1) & v_go(e1) & n_gang(x1) & of(x1,x2) & n_motorcycle(x2))