Task: Question Generation
Input (English): London is the world's most expensive office market for the last three years according to world property journal (2015) report. As of 2015[update] the residential property in London is worth $2.2 trillion - same value as that of Brazil annual GDP. The city has the highest property prices of any European city according to the Office for National Statistics and the European Office of Statistics. On average the price per square metre in central London is €24,252 (April 2014). This is higher than the property prices in other G8 European capital cities; Berlin €3,306, Rome €6,188 and Paris €11,229.
Output (English): London's residential property value is equivalent to what nation's GDP?