A pedestrian walking under a lovely old tree bare of leaves but green grass underfoot, with building tops showing below.
the lumberjack looking for a tree in a swamp.
The lumberjack is a different description of a person compared to a pedestrian. If the person is in a place with green grass and building tops, it is unlikely to be a swamp.
exists e1 s1 s2 s3 s4 s5 s6 x1 x2 x3 x4 x5 x6 x7 x8 x9.(a_topic(s1) & subset_of(x5,s1) & with(x5,x7) & a_below(s6) & Manner(e1,s6) & Actor(e1,x9) & v_show(e1) & (x7 = x9) & n_top(x7) & of(x7,x8) & n_building(x8) & n_underfoot(x5) & of(x5,x6) & n_grass(x6) & a_green(s5) & Theme(s5,x5) & subset_of(x1,s1) & under(x1,x2) & of(x2,x4) & n_leaf(x4) & n_bare(x2) & of(x2,x3) & n_tree(x3) & a_old(s4) & Theme(s4,x2) & a_lovely(s3) & Theme(s3,x2) & n_walking(x1) & a_pedestrian(s2) & Theme(s2,x1))
exists e1 x1 x2 x3 x4.(n_lumberjack(x1) & a_topic(x1) & for(e1,x3) & in(x3,x4) & n_swamp(x4) & n_tree(x3) & Actor(e1,x2) & v_look(e1) & (x1 = x2))