Anchor: Your liquid sky would sink through it, since negative weight must in truth be lighter than no weight, while nothing else would rise through the layer.
Entailed: The liquid sky would sink through it and nothing else would rise through it.
Contradiction: The liquid sky would be just fine.
Contradiction: The children are playing in the swimming pool.
Contradiction: The guy is shoveling the snow outside.
Contradiction: Two workers are baking a cake.
Contradiction: A group of children playing in the snow.