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 (", ").

[Q]: Paragraph- Sent 1: It's strange how one can write delightedly of the happier moments of life, forgetting the things that one would forget by remembering fully the things one would remember, and suddenly the forgotten, in revenge, rears up to savage the unwary.
Sent 2: So it was as I wrote the preceding.
Sent 3: My heart convulsed, and I left this manuscript for a three-day spree.
Sent 4: Apparently I was so successful that it lasted a week and a half.
Sent 5: Not bad for an eighty-three-year-old, even for one who has his rejuve every month.
Sent 6: And if I can brag and digress so easily, this must not be painful enough to merit a mindwipe, yes?
Sent 7: No. I abandoned these notes to my future self to have the wipe done immediately, thinking that Bernardo Flynn should receive such services when he needed them, even should the need arise at the third hour after midnight.
Sent 8: My mindsmith is not so understanding.
Sent 9: She says I am emotionally a child, to which I reply, "Of course.
Sent 10: Why else would I come to you?"Sent 11: This logic does not soothe her; she says I must wait three weeks.
Sent 12: Three!.
Sent 13: Such is the law.
Sent 14: I say I do not care about law, I care about service and she should care about money.
Sent 15: Enough.
Sent 16: I went on a spree, and it must have been a good one.
Sent 17: I hope the wipe is as successful with my time on Vega IV as my spree was with my time here.
Sent 18: I dimly remember three bedpartners who were probably human, and one that I hope was delirium.
Sent 19: I will not answer the phone for a week, no matter whose face appears on it.
Sent 20: I keep evading the issue.
Question: What was the character on?.
[A]: 17.

[Q]: Paragraph- Sent 1: Tocqueville thought the conquest of Algeria was important for two reasons: first, his understanding of the international situation and France's position in the world, and, second, changes in French society.
Sent 2: Tocqueville believed that war and colonization would "restore national pride, threatened", he believed, by "the gradual softening of social mores" in the middle classes.
Sent 3: Their taste for "material pleasures" was spreading to the whole of society, giving it "an example of weakness and egotism".
Sent 4: Applauding the methods of General Bugeaud, Tocqueville went so far to claim that "war in Africa is a science.
Sent 5: Everyone is familiar with its rules and everyone can apply those rules with almost complete certainty of success.
Sent 6: One of the greatest services that Field Marshal Bugeaud has rendered his country is to have spread, perfected and made everyone aware of this new science."Sent 7: Tocqueville advocated racial segregation in Algeria with two distinct legislations, one for European colonists and one for the Arab population.
Sent 8: Such a two-tier arrangement would be fully realised with the 1870 Cremieux decree and the Indigenousness Code, which extended French citizenship to European settlers and Algerian Jews, whereas Muslim Algerians would be governed by Muslim law and restricted to a second-class citizenship.
Question: What did Tocqueville advocate for that came into effect in 1870?.
[A]: 7, 8.

[Q]: Paragraph- Sent 1: LONDON, England (CNN) -- Last year's inaugural Prix Pictet photography award for environmental sustainability produced a stunning shortlist of photos.
Sent 2: Ed Kashi has documented the impact oil has made on the Niger Delta in Africa.
Sent 3: This year is no different with 12 photographers in the running for the first prize of 100,000 CHF ($97,500).
Sent 4: The theme in 2009 is described simply as "Earth."Sent 5: The aim is to highlight how man exploits the planet's resources and how this impacts the landscapes and communities surrounding them.
Sent 6: In an extraordinary series of photos Canadian Christopher Anderson captures how the quest for raw materials affects Venezuela.
Sent 7: In "The Diminishing Present," Portuguese-born Edgar Martins records forest landscapes in the moments before they are engulfed by flames.
Sent 8: In "Curse of the Black Gold: 50 Years of Oil in the Niger Delta," Ed Kashi captures the impact of the oil industry on Nigeria's environment and people since it was first discovered five decades ago.
Sent 9: Kashi, an American photojournalist, spent three years compiling his photos of the Niger Delta, making a total of five trips to the troubled region.
Sent 10: Kashi told CNN: "It was truly one of the most graphic examples of economic inequity that I have ever seen.
Sent 11: Especially with the backdrop of hundreds of billions of oil wealth that has been generated over the previous 50 years."Sent 12: As a result of his work, Kashi says that his photos are now being used by universities and NGOs to raise awareness to try and effect change.
Sent 13: To him, this has been one of the most gratifying and exciting by-products of his work.
Question: The impact of the oil industry has impacted Nigeria over what period of time?.
[A]:
8, 9, 11.