A constructor driving a hoist.
A person is driving.
a constructor is a person
exists e1 x1 x2 x3.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_drive(e1) & n_hoist(x3) & (x1 = x2) & n_constructor(x1))
exists e1 x1.(Actor(e1,x1) & v_drive(e1) & n_person(x1))