A motorway (autoroute) gives access from the city and the airports, Charles-de-Gaulle and Orly.
One cannot get access from the Charles-de-Gaulle airport from a motorway.
mnli hypothesis: One cannot get access from the Charles-de-Gaulle airport from a motorway. premise: A motorway (autoroute) gives access from the city and the airports, Charles-de-Gaulle and Orly.