Man and woman digging in the dirt.
There are people outside.
There is nothing to say that when they are, "digging in the dirt" that it is necessarily outside, and not in a greenhouse.
exists s1 x1 x2 x3 x4.(n_dirt(x4) & a_topic(s1) & subset_of(x2,s1) & in(x2,x4) & n_digging(x2) & of(x2,x3) & n_woman(x3) & subset_of(x1,s1) & n_man(x1))
exists p1 s1 x1.(a_outside(s1) & Manner(p1,s1) & exists x2.((x1 = x2) & n_people(x2)))