Task: Question Answering
Input (English): Question: A is two years older than B who is twice as old as C. If the total of the ages of A, B and C be 47, then how old is B?

 Option A: 17 years

 Option B: 19 years

 Option C: 18 years

 Option D: 10 years

 Option E: 12 years
Output (English): Option C