Anchor: Ozone is the best example; it forms in the atmosphere through a series of complex, non-linear chemical interactions of precursor pollutants, particularly certain classes of volatile organic compounds (VOCs) and nitrogen oxides (NOx).
Entailed: A great fitting example is ozone
Contradiction: A great fitting example is hydrogen
Contradiction: A man sitting alone with fruit.
Contradiction: People are in the gallery.
Contradiction: The center does not offer any exhibition rooms.
Contradiction: Children are waiting to walk down the aisle in a wedding.