instruction:
In this task, you are given a question. You have to answer the question based on your information.
question:
What was the population of the city where Andrew Nicholls and Darrell Vickers was born?
answer:
12,562


question:
Which four kingdoms did the Great Heathen Army invade?
answer:
Northumbria, Mercia, East Anglia and Wessex


question:
Are Justin David Swibel and Robert Lepage both directors?
answer:
yes