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: While glaciers erode the landscape, they also deposit materials.
Sent 2: Glaciers deposit their sediment when they melt.
Sent 3: They drop and leave behind whatever was once frozen in their ice.
Sent 4: Its usually a mixture of particles and rocks.
Sent 5: It can be of all sizes, called glacial till.
Sent 6: Water from the melting ice may form lakes or other water features.
Sent 7: Figure Moraine is sediment deposited by a glacier.
Sent 8: A ground moraine is a thick layer of sediments left behind by a retreating glacier.
Sent 9: An end moraine is a low ridge of sediments deposited at the end of the glacier.
Sent 10: It marks the greatest distance the glacier advanced.
Sent 11: A drumlin is a long, low hill of sediments deposited by a glacier.
Sent 12: Drumlins often occur in groups.
Sent 13: These groups are called drumlin fields.
Sent 14: The narrow end of each drumlin points in the direction of an advancing glacier.
Sent 15: An esker is a winding ridge of sand deposited by a stream of meltwater.
Sent 16: Such streams flow underneath a retreating glacier.
Sent 17: A kettle lake occurs where a chunk of ice melt as they are left behind as a glacier retreats.
Sent 18: When the huge chuck of ice melts it leaves a depression.
Question: What are the types of moraines?.
8, 9.

Paragraph- Sent 1: Bin Ladin reportedly discussed the planes operation with KSM and Atef in a series of meetings in the spring of 1999 at the al Matar complex near Kandahar.
Sent 2: KSM's original concept of using one of the hijacked planes to make a media statement was scrapped, but Bin Ladin considered the basic idea feasible.
Sent 3: Bin Ladin, Atef, and KSM developed an initial list of targets.
Sent 4: These included the White House, the U.S. Capitol, the Pentagon, and the World Trade Center.
Sent 5: According to KSM, Bin Ladin wanted to destroy the White House and the Pentagon, KSM wanted to strike the World Trade Center, and all of them wanted to hit the Capitol.
Sent 6: No one else was involved in the initial selection of targets.
Sent 7: Bin Ladin also soon selected four individuals to serve as suicide operatives: Khalid al Mihdhar, Nawaf al Hazmi, Khallad, and Abu Bara al Yemeni.
Sent 8: During the al Matar meetings, Bin Ladin told KSM that Mihdhar and Hazmi were so eager to participate in an operation against the United States that they had already obtained U.S. visas.
Sent 9: KSM states that they had done so on their own after the suicide of their friend Azzam (Nashiri's cousin) in carrying out the Nairobi bombing.
Sent 10: KSM had not met them.
Sent 11: His only guidance from Bin Ladin was that the two should eventually go to the United States for pilot training.
Sent 12: Hazmi and Mihdhar were Saudi nationals, born in Mecca.
Sent 13: Like the others in this initial group of selectees, they were already experienced mujahideen.
Sent 14: They had traveled together to fight in Bosnia in a group that journeyed to the Balkans in 1995.
Sent 15: By the time Hazmi and Mihdhar were assigned to the planes operation in early 1999, they had visited Afghanistan on several occasions.
Sent 16: Khallad was another veteran mujahid, like much of his family.
Sent 17: His father had been expelled from Yemen because of his extremist views.
Sent 18: Khallad had grown up in Saudi Arabia, where his father knew Bin Ladin, Abdullah Azzam, and Omar Abdel Rahman (the "Blind Sheikh").
Question: Whose father was expelled from Yemen?.
16, 17.

Paragraph- Sent 1: Pushkin is usually credited with developing Russian literature.
Sent 2: Not only is he seen as having originated the highly nuanced level of language which characterizes Russian literature after him, but he is also credited with substantially augmenting the Russian lexicon.
Sent 3: Where he found gaps in the Russian vocabulary, he devised calques.
Sent 4: His rich vocabulary and highly sensitive style are the foundation for modern Russian literature.
Sent 5: His accomplishments set new records for development of the Russian language and culture.
Sent 6: He became the father of Russian literature in the 19th century, marking the highest achievements of 18th century and the beginning of literary process of the 19th century.
Sent 7: Alexander Pushkin introduced Russia to all the European literary genres as well as a great number of West European writers.
Sent 8: He brought natural speech and foreign influences to create modern poetic Russian.
Sent 9: Though his life was brief, he left examples of nearly every literary genre of his day: lyric poetry, narrative poetry, the novel, the short story, the drama, the critical essay, and even the personal letter.
Sent 10: Pushkin's work as a journalist marked the birth of Russian magazine culture which included him devising and contributing heavily to one of the most influential literary magazines of the 19th century, the Sovremennik (The Contemporary, or Sovremennik).
Sent 11: Pushkin inspired the folk tales and genre pieces of other authors: Leskov, Esenin, and Gorky.
Sent 12: His use of Russian language formed the basis of the style of novelists Ivan Turgenev, Ivan Goncharov, and Leo Tolstoy, as well as that of subsequent lyric poets such as Mikhail Lermontov.
Sent 13: Pushkin was analyzed by Nikolai Vasilyevich Gogol, his successor and pupil, and the great Russian critic Vissarion Grigoryevich Belinsky who has also produced the fullest and deepest critical study of Pushkin's work, which still retains much of its relevance.
Question: What was considered to be one of the most influential literary magazines of the 19th Century?.
10.