Premise: John Nash (architect) . His best-known buildings are the Royal Pavilion , Brighton , and Buckingham Palace ( though the facade facing The Mall is an early 20th-century remodelling by Aston Webb of an 1850s wing by Edward Blore , and thus is not Nash 's work ) . In return , Nash promoted the career of Burton 's son , Decimus Burton , who assisted him with several of his designs and later became a famous architect in his own right .
Hypothesis: John Nash designed a building.
Label: ENTAILMENT