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 (", ").

Let me give you an 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?.
The answer to this example can be: 1, 2.
Here is why: 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.

OK. solve this:
Paragraph- Sent 1: (CNN) -- The Australian government has admitted it has 153 people, including children, in custody at sea while it fights a High Court challenge to any plans to send them back to Sri Lanka.
Sent 2: Until Tuesday's court hearing in Melbourne, the government had refused to confirm or deny it was holding the suspected asylum seekers, in line with its policy of not commenting on operational matters under "Operation Sovereign Borders."Sent 3: All those on board are thought to be Tamils who left the Indian port of Pondicherry on a 72-foot boat in mid-June.
Sent 4: They include three-year-old Febrina, whose image was released by a worried relative who hasn't heard from his family for more than a week.
Sent 5: "I am desperate to know where my family is.
Sent 6: I can't function at all not knowing.
Sent 7: I know all of them would be in very big trouble if sent back to Sri Lanka," he said, via an interpreter to the Tamil Refugee Council in Australia, before Tuesday's hearing.
Sent 8: The government launched Operation Sovereign Borders last September, a military-led campaign to "stop the boats," referring to a steady stream of vessels crammed with asylum seekers trying to make it to Australian waters.
Sent 9: Critics, including human rights campaigners, have slammed the policy, which advocates "turn-backs" and the offshore processing of asylum claims, as cruel and unnecessary.
Sent 10: 'Culture of secrecy' On Tuesday, they also took aim at the "culture of secrecy," which created days of uncertainty for family members whose relatives were presumably lost at sea, and resulted in a vacuum of official information to back up claims that a boat had gone missing.
Sent 11: "It took getting a case to the High Court before the government would admit that they did have those people in custody and that they were on the high seas, that's not good enough," said Ian Rintoul, from the Refugee Action Coalition.
Sent 12: David Manne, Executive Director of the Refugee and Immigration Legal Center (RILC), said the government's silence raised "profound concerns" about whether their rights and Australia's obligations under international law were being breached.
Question: What ethnic background is Febrina?.
Answer:
3, 4.