Anchor: Designed for a daughter of Louis XIV in 1722, it makes a stately riverside faaade for the 7th arrondissement, with its 18th-century embassies, ministries, and private mansions (hetels particuliers).
Entailed: Private mansions are referred to in French as hetels particuliers. 
Contradiction: The mansion was designed for a daughter of King Richard of England. 
Contradiction: He used a tool to penetrate the sky sphere, being careful not to touch it with his hand.
Contradiction: The two people are indoors.
Contradiction: Nash never created the bizarre set of inequalities, because he was busy partying.
Contradiction: Why would someone do such a thing?