instruction:
You are given a paragraph, with numbered sentences, and a question. Write the numbers of the sentences needed to answer the given question. Separate multiple sentence numbers with a comma (", "). E.g. "1, 2" would be the correct response if Sent 1 and Sent 2 are needed to answer the given question (do not include sentences that contain no information that is necessary to answer the question). Sort the sentence numbers in an increasing order (i.e., '1, 2', instead of '2, 1'). Your answer should not contain anything than the sentence numbers separated by a comma (e.g. '1, 2, 3, 4'). The given question requires more than one sentence to answer. So, your answer must contain at least one comma (", ").
question:
Paragraph- Sent 1: You are already very familiar with Earths gravity.
Sent 2: It constantly pulls you toward Earths center.
Sent 3: What might happen if there was no gravity?
Sent 4: You know that the Earth is rotating on its axis.
Sent 5: This motion causes our day and night cycle.
Sent 6: The Earth also orbits the Sun.
Sent 7: All this motion may cause you to fly off the Earth!
Sent 8: You can thank gravity for keeping you in place.
Sent 9: Gravity keeps us firmly down on the ground.
Sent 10: Gravity also pulls on objects that are in the sky.
Sent 11: It also pulls on objects that are in space.
Sent 12: Meteors and skydivers are pulled down by gravity.
Sent 13: Gravity also keeps the moon orbiting the Earth.
Sent 14: Without gravity, the moon would float away.
Sent 15: It also holds artificial satellites in their orbit.
Sent 16: Many of these satellites help to connect the world.
Sent 17: They allow you to pick up a phone a call in many parts of the world.
Sent 18: You can also thank gravity for all your TV channels. 
Question: What force keeps artificial satellites in orbit?.
answer:
13, 14, 15.


question:
Paragraph- Sent 1: Fact: Some places are timeless.
Sent 2: Days passed, weeks passed, but I couldn't tell if it had been months or years since I was rescued.
Sent 3: All there was, all I remembered, was a blur.
Sent 4: Gathering for drinks in the parlors, playing dress up with all the fine clothes I found in the closets (some of it modern, some of it period dress for special themed events), idling in the lounges.
Sent 5: Now and then, a new face mingled in the crowd.
Sent 6: Other faces washed out, fading into the backdrop of carpets and fake glass chandeliers and the muted hum of the engines.
Sent 7: One of these evenings, we were gathered in the South Ballroom for post-dinner drinks, lounging on couches and watching other members of our populace move in circles on the dance floor.
Sent 8: (The 'South' was in the title to suggest that there were more ballrooms.
Sent 9: There weren't.) Sarah's circle had picked up another newcomer, Adrienne, a short blond girl who we all agreed was barely old enough to attend a traditional university back on Earth, let alone work on the ship in whose wreck Jefferson had found her.
Sent 10: Maybe it was her curiosity, asking a question I should have asked long before, that turned the conversation serious; maybe there was just something special about that evening.
Sent 11: Maybe we had all tired of the frivolity of our life, hitting some threshold or some breaking point.
Sent 12: Regardless, when Adrienne asked what the ship's purpose was, we all gave it a measure of thought.
Sent 13: We dredged up half-fledged theories and inchoate explanations, tossing these out the same way we pitched ideas about the art films. 
Question: Does the author remember the details of being rescued?.
answer:
2, 3.


question:
Paragraph- Sent 1: Our sun and other stars release light energy.
Sent 2: At least this is what we see.
Sent 3: Our Sun and stars also emit more than just light.
Sent 4: Scientists call the type of energy that our Sun and stars release electromagnetic energy.
Sent 5: This form of energy travels through space.
Sent 6: Electromagnetic energy includes the light we see.
Sent 7: It also includes much more.
Sent 8: Many of these things we know about, but dont always think about.
Sent 9: Electromagnetic energy includes radio waves, microwaves, and X rays.
Sent 10: We now have devices in our homes and offices that release these same forms of energy.
Sent 11: We use electromagnetic energy to make our lives better. 
Question: Our sun and stars release light energy but they also release what other kind of energy?.
answer:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
1, 4.


