People are sitting at a park under flowering trees.
The people are standing in the desert.
The people cannot be sitting and standing at the same time. A park and a desert are different locations.
exists e2 e1 x1 x2 x3.(under(e1,x3) & n_tree(x3) & Actor(e2,x3) & v_flower(e2) & at(e1,x2) & n_park(x2) & Actor(e1,x1) & v_sit(e1) & n_people(x1))
exists e1 x1 x2.(n_desert(x2) & n_people(x1) & in(e1,x2) & Actor(e1,x1) & v_stand(e1))