Two men on a piece of green machinery in the trees.
The men are trimming the trees.
The men might not be trimming the trees and be engaged with something else.
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 e1 x1 x2.(n_tree(x2) & n_man(x1) & Theme(e1,x2) & Actor(e1,x1) & v_trim(e1))