TASK DEFINITION: Based on the given question and tppic, give an answer. The answer is available on on the internet. The questions are mostly centered around a single named entity.
PROBLEM: concept: Lleyton Hewitt  question:  who is lleyton hewitt?

SOLUTION: ['Tennis player']

PROBLEM: concept: Olympic Games  question:  which city held the summer olympics twice?

SOLUTION: ['Olympic games']

PROBLEM: concept: United States  question:  what continent is the usa located in?

SOLUTION:
North America