A blond guy and a girl are on some kind of transportation
A man with black hair rides in the sidecar of the motorcycle the woman is driving.
The man can not have black hair if his hair was previously blond
exists p1 s1 x1 x2 x3.(exists x4 x5.(on(x1,x4) & of(x4,x5) & n_transportation(x5) & n_kind(x4)) & subset_of(x3,x1) & n_girl(x3) & subset_of(x2,x1) & n_guy(x2) & a_blond(s1) & Theme(s1,x2))
exists p1 s1 x1 x2 x3 x4 x5 x6.(n_woman(x6) & n_motorcycle(x5) & n_sidecar(x4) & a_topic(x1) & with(x1,x2) & exists e1.(Actor(e1,x6) & v_drive(e1)) & that(x2,p1) & in(x2,x4) & of(x4,x5) & n_ride(x2) & of(x2,x3) & n_hair(x3) & a_black(s1) & Theme(s1,x2) & n_man(x1))