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 (", ").

Paragraph- Sent 1: Brad, Texas (CNN) -- Authorities were working on plans Friday for residents who were forced to flee a wildfire in northern Texas to return home, a day after firefighters made progress battling the blaze that destroyed dozens of homes.
Sent 2: The blaze in Palo Pinto County scorched 6,200 acres by Thursday, according to the Texas Forest Service.
Sent 3: The fire is burning near the resort of Possum Kingdom Lake, near the town of Brad, about 100 miles west of Dallas.
Sent 4: "We feel much better about this fire today," as the blaze is now 50% contained, said John Nichols, a spokesman for the Forest Service.
Sent 5: He said evacuations were lifted for some residents forced to evacuate the fire, which was driven by high temperatures and dry winds.
Sent 6: The wildfire has destroyed 40 homes and nine RVs since it began Tuesday, the Forest Service said Thursday.
Sent 7: Firefighters were receiving support from aerial tankers and helicopters.
Sent 8: Authorities are mapping out plans to allow residents to return to their homes, said Palo Pinto County Sheriff Ira Mercer.
Sent 9: Authorities also are trying to open the lake for the Labor Day holiday, he said.
Sent 10: On Wednesday, evacuations were ordered in several communities on the north side of the lake after the fire charged over a ridge and approached a dam on the lake, CNN affiliate WFAA reported.
Sent 11: The wildfire was moving so fast that the Forest Service pulled out of its command observation post, telling journalists and onlookers to get out of the way of the fire.
Sent 12: "My house is right through here, though it may be gone," Tom Hardeston told WFAA as he watched the fire.
Sent 13: Nearby ranchers battled to save their herds from the encroaching fire.
Sent 14: "I'm just moving them from pasture to pasture," Cindi McCoy told WFAA, referring to her livestock.
Sent 15: "As one pasture burns, I'm moving them back to that one and bring(ing) them back around.".
Question: When was the blaze 50 percent contained?.
1, 4.

Paragraph- Sent 1: The world can be divided into three climate zones.
Sent 2: The first climate zone is the polar zone.
Sent 3: As it sounds, the polar zone is near earths poles.
Sent 4: The polar zone has very long and cold winters.
Sent 5: Brrr!!!!
Sent 6: Near the equator is the tropical zone.
Sent 7: The tropical zone is known for being hot and wet.
Sent 8: Between these two zones is the temperate zone.
Sent 9: Temperatures there tend to be mild.
Sent 10: Its not too hot and not too cold.
Sent 11: You might expect places near the equator to be hot and wet.
Sent 12: Thats not always the case.
Sent 13: Sometimes there are other factors at work.
Sent 14: These factors can affect the local climate type or a region.
Sent 15: Oceans and mountain ranges can have a major impact.
Sent 16: They can greatly influence the climate of an area.
Sent 17: Many factors influence an areas climate.
Question: Which of the 3 climate zones is near the earths poles?.
1, 3.

Paragraph- Sent 1: The next evening, she arrived with a stack of glistening stopboxes containing sushi, sashimi, oysters in their shells, and Terran vegetables fresh plucked from their hydroponic beds.
Sent 2: Wondering about the reason for her extravagance, I asked how work had gone that day.
Sent 3: "Emil came in.
Sent 4: He's taking Dream's End."Sent 5: "Emil?"Sent 6: "You've no memory left, old one.
Sent 7: Emil Malaquez."Sent 8: You did that to test my affections."Sent 9: "What?"Sent 10: "Calling him by his first name.
Sent 11: I did that in a comedy once.'Nights with Karl and Groucho.'Sent 12: It was before your time."Sent 13: "The critics liked it."Sent 14: "I'm glad."Sent 15: A moment later: "That's not why I called him 'Emil'."Sent 16: "No. We lunched together.
Sent 17: He's nice.".
Question: Why did one of the charaters from the passages call Emil by his first name?.
15, 16.