Task: Question Answering
Input (English): Paragraph: Older rocks are at the bottom and younger rocks are at the top.
 Question: Rick had a rock (Rock A) from 1000 feet beneath the crust's surface. He later dug 3000 feet deeper and got a second rock (Rock B). Which rock is likely younger? 
 Choices: A)Rock A 
B)Rock B
Output (English): Rock A