Two workers holding up the tree look around, while the other two work hard with their shovels.
There are four men outside.
A tree would be outside.
exists e1 s1 s2 x1 x2 x3 x4 x5 x6.(n_shovel(x6) & of(x6,x3) & n_thing(x3) & -(x5 = x5) & n_work(x5) & card_eq_2(x5) & n_look(x3) & of(x3,x4) & n_tree(x4) & a_topic(x1) & with(e1,x6) & a_hard(s2) & Manner(e1,s2) & while(e1,x5) & a_up(s1) & Manner(e1,s1) & Theme(e1,x3) & Actor(e1,x2) & v_hold(e1) & r_around(x3) & (x1 = x2) & n_worker(x1) & card_eq_2(x1))
exists p1 s1 x1.(a_outside(s1) & Manner(p1,s1) & exists x2.((x1 = x2) & n_man(x2) & card_eq_4(x2)))