question: Going by 2004 calculations , how much does Southampton contribute to the region 's economy each year ?
answer: # 4.2 bn
turker_answer: Going by 2004 calculations , Southampton contributes # 4.2 bn to the region 's economy each year .
rule-based: Going by 2004 calculations , Southampton contributes # 4.2 bn to the region 's economy each year .