Two men on a piece of green machinery in the trees.
The men are outside.
The men are in the trees implies they are outside because trees grow outside.
exists s1 x1 x2 x3 x4.(n_tree(x4) & a_topic(x1) & on(x1,x2) & in(x2,x4) & of(x2,x3) & n_machinery(x3) & a_green(s1) & Theme(s1,x3) & n_piece(x2) & n_man(x1) & card_eq_2(x1))
exists s1 x1.(n_man(x1) & Theme(s1,x1) & a_outside(s1))