Given a question as input, give its short_answer as the output 

[EX Q]: 1 acre equals how many hectares?
[EX A]: 0.404686

[EX Q]: 1 acre equals how many gaj?
[EX A]: 4886.92

[EX Q]: 1 acer is equal to how many square meter?
[EX A]:
4046.86

