Two tired children rest on couches at an art museum while the adults around them view the art.
Two kids and adults are in a museum.
The children are adults are together at a museum. Children need to be supervised at the museum, so it implies that they are together.
(x)
exists p1 x1 x2 x3.(exists x4.(in(x1,x4) & n_museum(x4)) & subset_of(x3,x1) & n_adult(x3) & subset_of(x2,x1) & n_kid(x2) & card_eq_2(x2))