A man driving a green miniature train.
a man drving a train
Sentence 2 a a man driving a train is a shortened version of sentence 1.
exists e1 s1 x1 x2 x3 x4.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_drive(e1) & n_train(x3) & of(x3,x4) & n_miniature(x4) & a_green(s1) & Theme(s1,x3) & (x1 = x2) & n_man(x1))
exists e1 x1 x2 x3.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_drving(e1) & n_train(x3) & (x1 = x2) & n_man(x1))