What is the relationship between Standard Chartered and London in the context of the input sentence. Choose an answer from: product/material produced; manufacturer; distributed by; industry; position held; original broadcaster; owned by; founded by; distribution format; headquarters location; stock exchange; currency; parent organization; chief executive officer; director/manager; owner of; operator; member of; employer; chairperson; platform; subsidiary; legal form; publisher; developer; brand; business division; location of formation; creator.

201.30p +0.85% Mondi (MNDI) 1,610.00p +0.81% Sage Group (LSE: SGE.L - news ) (SGE) 523.00p +0.77% London Stock Exchange Group (LSE) 2,582.00p +0.62% Persimmon (PSN) 2,095.00p +0.53% Sports Direct International (Other OTC: SDIPF - news ) (SPD) 809.00p +0.43% FTSE 100 - Fallers Sainsbury (J) (SBRY) 262.20p -2.05% Anglo American (LSE: AAL.L - news ) (AAL) 784.50p -2.00% Prudential (Amsterdam: PD8.AS - news ) (PRU (HKSE: 2378-OL.HK - news ) ) 1,498.50p -1.96% Tesco (TSCO) 211.70p -1.90% Admiral Group (LSE: ADM.L - news ) (ADM) 1,454.00p -1.82% Standard Chartered (HKSE: 2888.HK - news ) (STAN) 909.90p -1.78% Lloyds Banking Group (Other OTC: LLOBF - news ) (LLOY) 80.68p -1.77% BHP Billiton (NYSE: BBL - news ) (BLT) 1,170.50p -1.72% Antofagasta (LSE: ANTO.L - news ) (ANTO) 579.50p -1.70% Aberdeen Asset Management (Other OTC: ABDNF - news ) (ADN) 345.20p -1.68%

Answer: headquarters_location