A group of people are walking through a bunch of leaves.
Some friends take a stroll in the autumn afternoon.
It cannot be declared the autumn because other seasons have leaves, or the afternoon because time of day was not declared or implied.
exists e1 x1 x2 x3 x4.(through(e1,x3) & of(x3,x4) & n_leaf(x4) & n_bunch(x3) & Actor(e1,x1) & v_walk(e1) & of(x1,x2) & n_people(x2) & n_group(x1))
exists e1 x1 x2 x3 x4.(n_afternoon(x3) & of(x3,x4) & n_autumn(x4) & in(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_take(e1) & n_stroll(x2) & n_friend(x1))