Based on the information present in the given passage, you need to write a correct answer to the given question. A correct answer is one that correctly and completely answers the question. Do not write answers that address the question partially or incorrectly. The correct answer must be contained in the given paragraph.

Example Input: Paragraph- Sent 1: Water flowing over Earths surface or underground causes erosion and deposition.
Sent 2: Water flowing over a steeper slope moves faster and causes more erosion.
Sent 3: How water transports particles depends on their size.
Sent 4: When water slows down, it starts depositing sediment.
Sent 5: This process starts with the largest particles first.
Sent 6: Runoff erodes the land after a heavy rain.
Sent 7: It picks up sediment.
Sent 8: Runoff carries most of the sediment to bodies of water.
Sent 9: Mountain streams erode narrow, V-shaped valleys and waterfalls.
Sent 10: Erosion and deposition by slow-flowing rivers create broad floodplains and meanders.
Sent 11: Deposition by streams and rivers may form alluvial fans and deltas.
Sent 12: Floodwaters may deposit natural levees.
Sent 13: Erosion and deposition by groundwater can form caves and sinkholes.
Sent 14: Stalactites and stalagmites are mineral deposits.
Sent 15: They build up in caves as water continues to drip.
Question: What body of water carries the particles?.
Example Output: Rivers.

Example Input: Paragraph- Sent 1: When the Algerian War began in 1954, Camus was confronted with a moral dilemma.
Sent 2: He identified with the pieds-noirs such as his own parents and defended the French government's actions against the revolt.
Sent 3: He argued that the Algerian uprising was an integral part of the 'new Arab imperialism' led by Egypt and an 'anti-Western' offensive orchestrated by Russia to 'encircle Europe' and 'isolate the United States'.
Sent 4: Although favouring greater Algerian autonomy or even federation, though not full-scale independence, he believed that the pieds-noirs and Arabs could co-exist.
Sent 5: During the war he advocated a civil truce that would spare the civilians, which was rejected by both sides, who regarded it as foolish.
Sent 6: Behind the scenes, he began to work for imprisoned Algerians who faced the death penalty.
Sent 7: From 1955 to 1956, Camus wrote for L'Express.
Sent 8: In 1957, he was awarded the Nobel Prize in literature "for his important literary production, which with clear-sighted earnestness illuminates the problems of the human conscience in our times".
Sent 9: When he spoke to students at the University of Stockholm, he defended his apparent inactivity in the Algerian question; he stated that he was worried about what might happen to his mother, who still lived in Algeria.
Sent 10: This led to further ostracism by French left-wing intellectuals.
Sent 11: Camus remained active and ambitious until the end of his life.
Sent 12: Financed by the money he received with his Nobel Prize, he adapted and directed for the stage Dostoyesvsky's Demons.
Sent 13: The play opened in January 1959 at the Antoine Theatre in Paris.
Sent 14: It was a critical success as well as an artistic and technical tour de force: 33 actors, 4 hours long, 7 sets, 24 scenes.
Sent 15: The walls could move sideways to reduce the size of each depicted location and the whole stage rotated to allow for immediate set transformations.
Sent 16: Camus put the painter and set decorator Mayo, who had already illustrated several of Camus' novels (The Stranger - 1948 Ed.), in charge of the demanding task of designing these multiple and complex theater sets.
Question: What play opened in January 1959 at the Antoine Theatre in Paris?.
Example Output: Dostoyesvsky's Demons.

Example Input: Paragraph- Sent 1: Soon after the conclusion of peace, important changes were made in legislation concerning industry and commerce, and the new freedom thus afforded produced a large number of limited liability companies.
Sent 2: Plans were formed for building a great network of railways, partly for the purpose of developing the natural resources of the country, and partly for the purpose of increasing its power for defense and attack.
Sent 3: The existence of serfdom was tackled boldly, taking advantage of a petition presented by the Polish landed proprietors of the Lithuanian provinces and, hoping that their relations with the serfs might be regulated in a more satisfactory way (meaning in a way more satisfactory for the proprietors), he authorized the formation of committees "for ameliorating the condition of the peasants," and laid down the principles on which the amelioration was to be effected.
Sent 4: This step had been followed by one even more significant.
Sent 5: Without consulting his ordinary advisers, Alexander ordered the Minister of the Interior to send a circular to the provincial governors of European Russia (serfdom was rare in other parts), containing a copy of the instructions forwarded to the Governor-General of Lithuania, praising the supposed generous, patriotic intentions of the Lithuanian landed proprietors, and suggesting that perhaps the landed proprietors of other provinces might express a similar desire.
Sent 6: The hint was taken: in all provinces where serfdom existed, emancipation committees were formed.
Sent 7: The emancipation was not merely a humanitarian question capable of being solved instantaneously by imperial ukase.
Sent 8: It contained very complicated problems, deeply affecting the economic, social and political future of the nation.
Sent 9: Alexander had to choose between the different measures recommended to him and decide if the serfs would become agricultural laborers dependent economically and administratively on the landlords or if the serfs would be transformed into a class of independent communal proprietors.
Sent 10: The emperor gave his support to the latter project, and the Russian peasantry became one of the last groups of peasants in Europe to shake off serfdom.
Sent 11: The architects of the emancipation manifesto were Alexander's brother Konstantin, Yakov Rostovtsev, and Nikolay Milyutin.
Sent 12: On 3 March 1861, 6 years after his accession, the emancipation law was signed and published.
Question: When was the existence of serfdom tackled?.
Example Output:
Soon after the conclusion of peace.