Old man riding a bike down the street.
The man has balance.
riding a bike implies the man has balance.
exists e1 s1 x1 x2 x3 x4.(n_street(x4) & a_topic(x1) & down(x1,x4) & Theme(e1,x3) & Actor(e1,x2) & v_ride(e1) & n_bike(x3) & (x1 = x2) & n_man(x1) & a_old(s1) & Theme(s1,x1))
exists e1 x1 x2.(n_man(x1) & Theme(e1,x2) & Actor(e1,x1) & v_have(e1) & n_balance(x2))