A man wearing a red helmet rides a bike.
A man is on his way to the park on his bike.
The man riding the bike may or may not be on his way to the park.
exists e1 e2 s1 x1 x2 x3 x4.(Theme(e2,x4) & Actor(e2,x1) & v_ride(e2) & n_bike(x4) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & n_helmet(x3) & a_red(s1) & Theme(s1,x3) & (x1 = x2) & n_man(x1))
exists p1 x1 x2 x3 x4.(n_park(x3) & exists x1.(on(x1,x2) & to(x2,x3) & on(x3,x4) & n_male(x1)) & n_bike(x4) & of(x4,x1) & n_way(x2) & of(x2,x1) & n_male(x1) & n_man(x1))