Text: Also on the grounds are the Museum of Imperial Collections, an exhibition hall for art treasures donated to the public by the imperial family in 1989; and the Hundred-Man Guardhouse, where the approach to the inner sanctum of the fortress was defended by four shifts of 100 samurai warriors each.
Entailment: There is a Museum of Imperial Collections which contains art treasures donated by the imperial family in 1989.
Contradiction: There is nothing to see in the Museum of Imperial Collections.