Children and adults plant a sapling in the ground.
People chopping down a tree.
Planting a sapling is the opposite of chopping down a tree.
exists s1 x1 x5.(n_ground(x5) & a_topic(s1) & all x2.(n_sapling(x2) -> exists x3 x4.(subset_of(x3,s1) & in(x3,x5) & for(x3,x2) & Time(x3,x4) & n_plant(x4) & n_adult(x3))) & subset_of(x1,s1) & n_child(x1))
exists e1 s1 x1 x2 x3.(a_topic(x1) & a_down(s1) & Manner(e1,s1) & Theme(e1,x3) & Actor(e1,x2) & v_chop(e1) & n_tree(x3) & (x1 = x2) & n_people(x1))