Regent Street is not in London.
Oxford Circus is a road junction connecting Oxford Street and Regent Street. Oxford Street is in London. John Nash designed the construction on Regent Street. John Nash designed Oxford Circus. John Nash is an architect in British. Oxford Circus is the entrance to Oxford Circus tube station which is a part of the Central line in 1900.
OxfordStreet(oxfordCircus) ∧ RegentStreet(oxfordCircus) ∀x (OxfordStreet(x) → London(x)) ∃x (RegentStreet(x) ∧ Design(johnNash, x)) Design(johnNash, oxfordCircus) British(johnNash) ∧ Architect(johnNash) CentralLine(oxfordCircus)