A person has two small children sitting in front of him on a motorcycle.
two kids are sitting on a harley motorcycle
Just because it is a motorcycle does not mean it is a Harley motorcycle.
exists e1 e2 s1 x1 x2 x3 x4 x5.(Theme(e2,x2) & Actor(e2,x1) & v_have(e2) & on(e1,x5) & n_motorcycle(x5) & in(e1,x4) & of(x4,x1) & n_male(x1) & n_front(x4) & Actor(e1,x3) & v_sit(e1) & (x2 = x3) & n_child(x2) & a_small(s1) & Theme(s1,x2) & card_eq_2(x2) & n_person(x1))
exists e1 x1 x2 x3.(on(e1,x2) & n_motorcycle(x2) & of(x2,x3) & n_harley(x3) & Actor(e1,x1) & v_sit(e1) & n_kid(x1) & card_eq_2(x1))