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 Input:
Paragraph- Sent 1: What if two children push a swing at the same time?
Sent 2: Would the swing go higher?
Sent 3: Yes, together their force would be more.
Sent 4: It is common for forces to be combined.
Sent 5: Most objects on Earth have at least two forces acting on them.
Sent 6: Do you know what one of them is?
Sent 7: Of course, that force is gravity.
Sent 8: How many forces do you have on you right now?
Sent 9: Gravity pulls you down toward the center of Earth.
Sent 10: Your legs exert a downward force.
Sent 11: They hold you up against the pull of gravity.
Sent 12: Consider the example in Figure 1.3.
Sent 13: A book is resting on a table.
Sent 14: Gravity pulls the book downward.
Sent 15: It has a force of 20 newtons.
Sent 16: At the same time, the table pushes the book upward.
Sent 17: Its force is also 20 newtons.
Sent 18: The table opposes the pull of gravity.
Question: What part of one's body can hold them up against the force of gravity?.

Ex Output:
9, 10, 11.

Ex Input:
Paragraph- Sent 1: The grant also will help victims go through court proceedings after losing a job or being evicted because of an abuser's actions, Xanthopoulos said.
Sent 2: "It's going to help the victims, but it's also going to help their children," he said.
Sent 3: More than 270 domestic violence assaults in Madison County were reported last year, according to Tennessee Bureau of Investigation statistics.
Sent 4: In Jackson, more than 730 domestic violence assaults were reported last year, according to records.
Sent 5: "Domestic violence is certainly on the increase and we need to do something to curve that.
Sent 6: I see this as helping that," Madison County Sheriff David Woolfork said of the grant.
Sent 7: Domestic violence accounted for five of 12 murders in 2001 in Jackson, police have said.
Sent 8: And the increase in calls prompted Jackson Police Chief Rick Staples in March to form a focus group to determine if police officers need to make changes in their response to domestic calls.
Question: The increase in calls to Jackson police led to what action?.

Ex Output:
4, 7, 8.

Ex Input:
Paragraph- Sent 1: A day at the beach.
Sent 2: When Sam woke in the morning, he was super excited!
Sent 3: Today was the day!
Sent 4: It was Sunday, the day that Sam's mom and dad had promised to take Sam to the beach.
Sent 5: Sam's grandma had given a pail and shovel to Sam to use in the sand.
Sent 6: At breakfast Sam was so excited he was wiggling in his seat!
Sent 7: Mom told Sam that they would leave when the big hand on the clock was pointing to the 10, and the little had was pointing to the 12.
Sent 8: Mom asked Sam if he would like to help make sandwiches for the trip, and Sam said that he wanted to help.
Sent 9: Dad said, "let's make a game of it, we need to make a sandwich for each of us.
Sent 10: There are three of us, so we need three sandwiches.
Sent 11: Let's count as we make the sandwiches!"Sent 12: Sam counted as mom made the sandwiches, one for dad, one for mom and one for Sam.
Sent 13: Then mom started to make another sandwich!
Sent 14: "Mom!"Sent 15: said Sam, "we have three sandwiches and that makes one sandwich for each of us."Sent 16: Sam's mom laughed, "You're right Sam!"Sent 17: Sam's mom said she was being silly.
Question: How many sandwiches did they need, and how many did mom make?.

Ex Output:
9, 10, 13, 17.