A person wearing a purple jacket stands behind a tall tree.
A person wearing a purple jacket sitting on a couch.
The person cannot be sitting and standing at the same time.  A tree is outside while a couch is inside.
exists e1 e2 s1 s2 x1 x2 x3 x4.(behind(e2,x4) & n_tree(x4) & a_tall(s2) & Theme(s2,x4) & Actor(e2,x1) & v_stand(e2) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & n_jacket(x3) & a_purple(s1) & Theme(s1,x3) & (x1 = x2) & n_person(x1))
exists e1 e2 s1 x1 x2 x3 x4 x5.(a_topic(x1) & Theme(e2,x3) & Actor(e2,x2) & v_wear(e2) & on(e1,x5) & n_couch(x5) & Actor(e1,x4) & v_sit(e1) & (x3 = x4) & n_jacket(x3) & a_purple(s1) & Theme(s1,x3) & (x1 = x2) & n_person(x1))