Based on the information present in the given passage, you need to write a correct answer to the given question. A correct answer is one that correctly and completely answers the question. Do not write answers that address the question partially or incorrectly. The correct answer must be contained in the given paragraph.

Example Input: Paragraph- Sent 1: Energy often changes from one form to another.
Sent 2: For example, the drummer transfers motion to sound energy.
Sent 3: When the moving drumstick strikes the drum head, the drum starts to vibrate.
Sent 4: The motion of the vibrating drum head creates the sound you hear.
Sent 5: Any form of energy can change into any other form.
Sent 6: Frequently, one form of energy changes into two or more different forms.
Sent 7: Have you ever sat in front of a campfire?
Sent 8: What are two things you notice?
Sent 9: The fire creates light.
Sent 10: It is also warm by the fire, meaning it creates heat.
Sent 11: The energy of the fire comes from the stored energy in the wood.
Sent 12: The wood contains chemical energy.
Sent 13: As it burns, the chemical energy is changed into light and heat.
Sent 14: Not all chemical energy changes produce light and heat.
Sent 15: Our cars use gasoline as a fuel.
Sent 16: Gasoline contains chemical energy.
Sent 17: When our cars burn gasoline in their engines, it is converted into motion and heat.
Sent 18: When energy changes forms, energy is conserved.
Question: What do wood and gasoline have in common?.
Example Output: They contain chemical energy and they both burn.

Example Input: Paragraph- Sent 1: Once upon a time Jimmy had a mother who told him that he was good at music.
Sent 2: Jimmy wanted to play music.
Sent 3: He did not know which instrument to play, so he tried a piano first.
Sent 4: The piano went like a sound.
Sent 5: Then he tried a guitar.
Sent 6: The guitar played.
Sent 7: His brother told him that the piano was better to start, so Jimmy played the piano.
Sent 8: He hammered on the keys.
Sent 9: Jimmy's brother liked this, but mom did not like this.
Sent 10: Jimmy tried playing very quiet.
Sent 11: Jimmy's mom liked this, but Jimmy's brother did not like this.
Sent 12: Jimmy tried playing in the middle.
Sent 13: Jimmy liked this, and Jimmy's mom liked this, and Jimmy's brother liked this.
Sent 14: It was great.
Question: When Jimmy hammered on the keys, who didn't like it?.
Example Output: Jimmy's mom.

Example Input: Paragraph- Sent 1: Imagine you are standing in a farm field in central Illinois.
Sent 2: The land is so flat you can see for miles and miles.
Sent 3: On a clear day, you might see a grain silo 20 miles away.
Sent 4: You might think to yourself, it sure is flat around here.
Sent 5: If you drive one hundred miles to the south, the landscape changes.
Sent 6: In southern Illinois, there are rolling hills.
Sent 7: Why do you think this is?
Sent 8: What could have caused these features?
Sent 9: There are no big rivers that may have eroded and deposited this material.
Sent 10: The ground is capable of supporting grass and trees, so wind erosion would not explain it.
Sent 11: To answer the question, you need to go back 12,000 years.
Sent 12: Around 12,000 years ago, a giant ice sheet covered much of the Midwest United States.
Sent 13: Springfield, Illinois, was covered by over a mile of ice.
Sent 14: Its hard to imagine a mile thick sheet of ice.
Sent 15: The massive ice sheet, called a glacier, caused the features on the land you see today.
Sent 16: Where did glaciers go?
Sent 17: Where can you see them today?
Sent 18: Glaciers are masses of flowing ice.
Question: What covered Illinois 12,00 years ago?.
Example Output:
A sheet of ice at least 1 mile thick that spanned across the Midwest.