President Pompidou had a house on the quai de Bethune and used to escape there from the Elysee Palace as frequently as he could.
President Pompidou never left the Elysee Palace at all.  
mnli hypothesis: President Pompidou never left the Elysee Palace at all.   premise: President Pompidou had a house on the quai de Bethune and used to escape there from the Elysee Palace as frequently as he could.