input: What is the answer to this question? who did the voice of hal in 2001 space odyssey?

output: Douglas Rain

input: What is the answer to this question? why were the doors to the exits and stairwells locked in this factory?

output: to reduce theft

input: What is the answer to this question? when did starcraft 2 become free to play?

output:
During BlizzCon 2017