question: What year did Indira Gandhi International Airport win an award for Best airport in the world in the 25-40 million passenger category ?
answer: 2015
turker_answer: The Indira Gandhi International Airport won an award for best airport in the world in the 25-40 million passenger category in 2015 .
rule-based: Indira Gandhi International Airport won an award for Best airport in the world in the 25-40 million passenger category in 2015 .