Teacher: 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 (", ").
Teacher: Now, understand the problem? If you are still confused, see the following example:
Paragraph- Sent 1: A Republican bid to keep the government open past Friday includes no new money for the construction of a border wall along the U.S.-Mexico border, according to several congressional aides familiar with ongoing talks.
Sent 2: GOP leaders submitted the new offer Tuesday afternoon in an effort to appease Democrats, whose votes are needed to avert a shutdown of federal agencies, several House and Senate aides said.
Sent 3: However, Republicans also insisted on increases in border security and defense spending, including money to repair existing fencing and new surveillance technology to patrol the nearly 2,000-mile border.
Sent 4: Democrats have indicated that they would support such appropriations so long as no money goes toward an actual wall.
Question: Who has to be appeased to keep the government open?.
Solution: 1, 2.
Reason: The question is: Who has to be appeased to keep the government open? The phrase "appease Democrats" is mentioned in Sent 2, about accepting offer that is mentioned in Sent 1 to "keep the government open". So, Sent 1 and Sent 2 are the sentences needed to answer this question.

Now, solve this instance: Paragraph- Sent 1: An archaeological party explore some caverns underground .
Sent 2: Dr. Campbell and Dr. Hughes are the two leaders of the archaeological expedition , and get separated .
Sent 3: While Dr. Hughes finds an alien corpse with a fossilized diamond , Dr. Campbell finds hieroglyphics at the cost of the party except for Hughes and himself .
Sent 4: Two years later , Campbell and his assistant Holly are digging up the bones of Yonggary , a gargantuan dinosaur 50 times the size of a tyrannosaurus rex .
Sent 5: Out of nowhere , people slowly are being killed around the site .
Sent 6: While Holly is working Dr. Hughes , who has been legally dead for 2 years , goes to Holly and tells her to stop the dig .
Sent 7: Dr. Campbell comes into the tent and sends Dr. Hughes off .
Sent 8: Holly quits the expedition when another `` Accident '' occurs .
Sent 9: In the town bar , Dr. Hughes finds Holly and takes her back to her Hotel room to tell her why he thinks the bones of the Dinosaur , which he calls Yonggary , are going to bring the end of the world .
Sent 10: After explaining , Holly and Hughes go to the site to stop Campbell but it is too late and Aliens resurrect Yonggary .
Sent 11: After Yonggary 's first appearance , the Army comes in and takes Holly and Campbell to an army base when Yonggary is dispatched by the aliens again .
Sent 12: The army sends choppers after Yonggary , but he destroys them .
Sent 13: Yonggary is then sent to the city and does some damage , where some jets attack him .
Sent 14: Then Yonggary is transported to a power plant where he is attacked by rocket pack soldiers .
Sent 15: During the fight , Hughes and Holly find out that the diamond on Yonggary 's forehead is the device giving the aliens control of Yonggary . 
Question: What was the "accident" that caused Holly to quit the expedition?.
Student:

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
5, 8.