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 (", ").

Input: Consider Input: Paragraph- Sent 1: (CNN) -- The photographer who took images of former Pakistani Prime Minister Benazir Bhutto moments before her assassination Thursday told CNN he was "surprised" to see her rise through the sunroof of her vehicle to wave to supporters after delivering her speech.
Sent 2: Getty Images photographer John Moore captured Benazir Bhutto waving, moments before he heard gunshots.
Sent 3: "I ran up, got as close as I got, made a few pictures of her waving to the crowd," Getty Images senior staff photographer John Moore told CNN's online streaming news service, CNN.com Live, in a phone interview Thursday from Islamabad, Pakistan.
Sent 4: "And then suddenly, there were a few gunshots that rang out, and she went down, she went down through the sunroof," he said.
Sent 5: "And just at that moment I raised my camera up and the blast happened.
Sent 6: ... And then, of course, there was chaos."Sent 7: Watch Moore describe Bhutto's final moments " Moore said he was about 20 yards away from Bhutto's vehicle when he took his photographs.
Sent 8: Bhutto was rushed to Rawalpindi General Hospital, where she was pronounced dead.
Sent 9: Moore said he had been following Bhutto's story since her return to Pakistan in October.
Sent 10: He was present October 19 when a terror attack targeting her motorcade in Karachi killed 136 people.
Sent 11: In the aftermath of that attack, "the rallies had been very small," because of high security, Moore said.
Sent 12: However, the Rawalpindi rally was announced beforehand, he observed.
Sent 13: "Whoever planned this attack -- they had time on their hands to plan everything properly, and you saw the results today," he said.
Sent 14: Between 5,000 and 8,000 were at the Rawalpindi rally, which was held at a parkground, he said.
Sent 15: "We [the news media] all expected it to be filled ... but there were less people there than most of us expected to see," he said.
Sent 16: "When I talked with a number of people, they said that people were just afraid to come out, for the simple reason that they all remembered what happened in Karachi."Sent 17: Moore said he himself expected there could be another attack following the Karachi massacre.
Sent 18: He said he stayed away from gates at the Rawalpindi parkground, where police were searching people, because he suspected that's where a bomb would go off.
Question: What was the date of the attack that forced Benazir to keep his rallies small for security purposes?.

Output: 10, 11.

Input: Consider Input: Paragraph- Sent 1: Force is a vector.
Sent 2: What then is a vector?
Sent 3: Think about how you would give directions to a friend.
Sent 4: You would not say, just walk half a mile.
Sent 5: The person may walk a half mile in the wrong direction!
Sent 6: More information is needed.
Sent 7: You may say, follow this particular road for a half mile.
Sent 8: You may say, look for the green house on Sumter St. In both examples, you provided a direction.
Sent 9: You also gave the distance.
Sent 10: In other words, you provided a vector.
Sent 11: You did not just give a distance.
Sent 12: Both pieces of information are needed to find a location.
Sent 13: This is just like describing forces.
Sent 14: To explain forces, both size and direction are needed.
Sent 15: Notice the girl in Figure 1.1.
Sent 16: She is pushing the swing away from herself.
Sent 17: Thats the direction of the force.
Sent 18: She can give the swing a strong push or a weak push.
Question: When you say, "Follow this particular road for a half mile," what kind of information are you providing in addition to distance?.

Output: 7, 8.

Input: Consider Input: Paragraph- Sent 1: (CNN) -- The body of a tourist was found off the coast of Thailand Tuesday, but six others remain missing after a ferry sank over the weekend near a popular diving destination, authorities said.
Sent 2: Survivors of the ferry sinking disembark the Thai police boat that rescued them.
Sent 3: The body is believed to be that of Austrian tourist Gabrielle Jetzinger, the Phuket Disaster Prevention and Mitigation Office told the Thai News Agency.
Sent 4: A Thai naval helicopter spotted the body floating face down about 12 nautical miles from Phuket's Promthep cape, and a Thai navy patrol retrieved the floating corpse.
Sent 5: The body has been sent to a government hospital for an autopsy, the agency reported.
Sent 6: Authorities are still searching for the five tourists and one crew member who remain missing.
Sent 7: They are thought to be German, Austrian, Japanese, Swiss and one Thai crew member, the news agency said.
Sent 8: The tourist boat, the Choke Somboon 19, was taking passengers from the Similan Islands to Phuket -- an area popular with tourists from around the world.
Sent 9: It capsized during a heavy storm Sunday night, said Lt. Sattawat Srirattanapong with the Phuket City police.
Sent 10: Survivors included 15 international tourists and eight Thais, who were picked up by a rescue boat Monday morning.
Sent 11: Phuket and the Similan Islands are famous for their diving spots, attracting international tourists each year from November to May.
Question: How many nations were involved in the sinking of the tourist boat?.
Output: 7, 8.