Input question: Including the positives and negatives, there are eight blood groups. Which is the rarest?

Output answer: ab negative

Input question: Who was the literary character behind the play Man of La Mancha?

Output answer: don quixote

Input question: The Swiss have completed construction of which underground rail tunnel which is over 35 miles long ? This tunnel will provide a railway link through the Alps and will become operational in 2017.

Output answer: gotthard tunnel

Input question: What high-tech manufacturing corporation agreed to buy the security software company McAfee for $7.7bn in summer 2010?

Output answer:
intel