Text: Revamping the Musee du Louvre since the 1980s has made this formidable palace of art far more accessible, in all senses.
Entailment: This formidable palace of art has become far more accesible, in all senses, since the revamping of Musee du Louvre since the 1980s.
Contradiction: Musee du Luvre has been far more accesible 100 years ago, when it used to be open entry; now it's closed for regular visitors.