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 (", ").

[EX Q]: Paragraph- Sent 1: Rivers flowing over gentle slopes move more slowly.
Sent 2: They move much more slowly than a mountain stream.
Sent 3: These slow moving streams create different types of features than mountain streams.
Sent 4: Slow moving water erodes the sides of their channels more than the bottom.
Sent 5: Also, large curves in the stream form.
Sent 6: These curves are called meanders.
Sent 7: Meanders are caused by erosion and deposition.
Sent 8: Remember, faster moving water causes erosion more quickly.
Sent 9: Slower moving water erodes material more slowly.
Sent 10: If water is moving slowly enough, the sediment being carried may settle out.
Sent 11: This settling out, or dropping off, of sediment is deposition.
Sent 12: The curves are called meanders because they slowly wander over the land.
Sent 13: As meanders erode from side to side, they create a floodplain.
Sent 14: This is a broad, flat area on both sides of a river.
Sent 15: Eventually, a meander may become cut off from the rest of the river.
Sent 16: This forms an oxbow lake.
Question: What is the broad, flat area on both sides of a river called?.
[EX A]: 13, 14.

[EX Q]: Paragraph- Sent 1: The protagonist Preetam ( ( ( Ganesh , on a visit to Eva Mall amidst a heavy wind , spots a pretty girl , Nandini .
Sent 2: While staring at her , he inadvertently falls into a manhole .
Sent 3: Nandini rescues him from the pit , but in the process loses her heart-shaped watch she had just bought .
Sent 4: While accompanying his mother to Madikeri , Preetam confronts a man named Jaanu .
Sent 5: Jaanu , who has been following Nandini , beats up Preetam thinking that he is in love with Nandini .
Sent 6: Preetam , unaware that Jaanu has vowed not to allow any one near Nandini , trashes Jaanu and his gang in return .
Sent 7: In Madikeri , Preetam meets Nandini unexpectedly .
Sent 8: He identifies himself and expresses his love towards her and offers to tie the watch as an indication for their marriage .
Sent 9: Nandini , who is already engaged rejects his request .
Sent 10: Still , Preetam vows to marry Nandini if she meets him again .
Sent 11: In the meantime , Preetam discovers that his host in Madikeri , Col. Subbayya is Nandini 's father , who is pretty much deaf , and Nandini 's marriage is a just a week away .
Sent 12: Dejected , Preetam throws Nandini 's heart-shaped watch away .
Sent 13: But Nandini calls him over the phone and taunts him to return .
Sent 14: Delighted , Preetam goes in search of her watch and brings it back .
Sent 15: While searching it , he spots a rabbit , which he calls Devadas , and brings it along with him .
Sent 16: Since Nandini 's friends are due to arrive from Mumbai for the marriage , Preetam takes Nandini to the railway station .
Sent 17: The train from Mumbai is delayed by five hours , so Nandini and Preetam decide to visit a nearby hill-temple .
Question: What was Preetam searching for when he finds a rabbit?.
[EX A]: 14, 15.

[EX Q]: Paragraph- Sent 1: Flowing water causes sediment to move.
Sent 2: Flowing water can erode both rocks and soil.
Sent 3: You have already learned that materials can dissolve in water.
Sent 4: With enough time, even rocks can be dissolved by water.
Sent 5: This process happens really slowly.
Sent 6: It may take over a million years to dissolve a rock.
Sent 7: It doesnt matter how big the rock is.
Sent 8: With enough time, flowing water can dissolve it.
Sent 9: Moving water also has the ability to move small pieces of rock and soil.
Sent 10: How can water move a rock?
Sent 11: Doesnt it need energy?
Sent 12: Of course, water gets its energy because it is moving.
Sent 13: Moving water has kinetic energy.
Sent 14: Things that have more energy can do more work.
Sent 15: When water stops moving it will have no energy.
Sent 16: It will no longer be able to move the rock and soil.
Sent 17: When this happens the rock and soil will settle to the bottom of the calm water.
Sent 18: Scientists call this process deposition.
Question: Would deposition of or the moving of a particular rock take more energy?.
[EX A]:
15, 16, 17.