Several people are dancing in some sand.
The people are inside a house.
There wouldn't be sand inside the house.
exists e1 s1 x1 x2.(in(e1,x2) & n_sand(x2) & Actor(e1,x1) & v_dance(e1) & n_people(x1) & a_several(s1) & Theme(s1,x1))
exists p1 x1.(n_people(x1) & exists x2.(inside(x1,x2) & n_house(x2)))