In this task, you're expected to write answers to questions involving multiple references to the same entity. The answer to the question should be unambiguous and a phrase in the paragraph. Most questions can have only one correct answer.

Input: Consider Input: Passage: Wedge Donovan is a tough construction boss, building airstrips in the Pacific for the U.S. Navy during World War II. He clashes with his liaison officer, Lieutenant Commander Robert Yarrow, over the fact that his men are not allowed to arm themselves against the Japanese. When the enemy lands in force on the island, he finally takes matters into his own hands, leading his men into the fray. This prevents Yarrow from springing a carefully devised trap that would have wiped out the invaders in a murderous machinegun crossfire, with minimal American losses. Instead, many of Donovan's men are killed unnecessarily.
As a result of this tragedy, Yarrow finally convinces the US Navy to form Construction Battalions (CBs, or the more familiar "Seabees") with Donovan's assistance, despite their mutual romantic interest in war correspondent Constance Chesley. Donovan and many of his men enlist and receive formal military training.
The two men are teamed together on yet another island. The Japanese launch a major attack, which the Seabees barely manage to hold off, sometimes using heavy construction machinery such as bulldozers and a clamshell bucket. When word reaches Donovan of another approaching enemy column, there are no sailors left to oppose this new threat. In desperation, he rigs a bulldozer with explosives on its blade, intending to ram it into a petroleum storage tank. The plan works, sending a cascade of burning liquid into the path of the Japanese, who retreat in panic, right into the sights of waiting machine guns.  However, Wedge is shot in the process and dies in the explosion. 
Question: What is the last name of the man who clashes with Robert?

Output: Donovan.


Input: Consider Input: Passage: Britain's declaration of war against Nazi Germany in September 1939 included the Crown colonies and India but did not automatically commit the Dominions of Australia, Canada, New Zealand, Newfoundland and South Africa. All soon declared war on Germany, but Ireland chose to remain legally neutral throughout the war.After the Fall of France in June 1940, Britain and the empire stood alone against Germany, until the German invasion of Greece on 7 April 1941. British Prime Minister Winston Churchill successfully lobbied President Franklin D. Roosevelt for military aid from the United States, but Roosevelt was not yet ready to ask Congress to commit the country to war. In August 1941, Churchill and Roosevelt met and signed the Atlantic Charter, which included the statement that "the rights of all peoples to choose the form of government under which they live" should be respected. This wording was ambiguous as to whether it referred to European countries invaded by Germany and Italy, or the peoples colonised by European nations, and would later be interpreted differently by the British, Americans, and nationalist movements.In December 1941, Japan launched, in quick succession, attacks on British Malaya, the United States naval base at Pearl Harbor, and Hong Kong. Churchill's reaction to the entry of the United States into the war was that Britain was now assured of victory and the future of the empire was safe, but the manner in which British forces were rapidly defeated in the Far East irreversibly harmed Britain's standing and prestige as an imperial power. Most damaging of all was the Fall of Singapore, which had previously been hailed as an impregnable fortress and the eastern equivalent of Gibraltar. The realisation that Britain could not defend its entire empire pushed Australia and New Zealand, which now appeared threatened by Japanese forces, into closer ties with the United States. This resulted in the 1951 ANZUS Pact between Australia, New Zealand and the United States of America. 
Question: What location was the city that was seen as impregnable fortress considered to be the eastern equivalent of?

Output: Gibraltar.


Input: Consider Input: Passage: Lawrence Morton, in a study of the origins of The Rite, records that in 1907–08 Stravinsky set to music two poems from Sergey Gorodetsky's collection Yar. Another poem in the anthology, which Stravinsky did not set but is likely to have read, is "Yarila" which, Morton observes, contains many of the basic elements from which The Rite of Spring developed, including pagan rites, sage elders, and the propitiatory sacrifice of a young maiden: "The likeness is too close to be coincidental". Stravinsky himself gave contradictory accounts of the genesis of The Rite. In a 1920 article he stressed that the musical ideas had come first, that the pagan setting had been suggested by the music rather than the other way round. However, in his 1936 autobiography he described the origin of the work thus: "One day [in 1910], when I was finishing the last pages of L'Oiseau de Feu in St Petersburg, I had a fleeting vision ... I saw in my imagination a solemn pagan rite: sage elders, seated in a circle, watching a young girl dance herself to death. They were sacrificing her to propitiate the god of Spring. Such was the theme of the Sacre du Printemps".By May 1910 Stravinsky was discussing his idea with Nicholas Roerich, the foremost Russian expert on folk art and ancient rituals. Roerich had a reputation as an artist and mystic, and had provided the stage designs for Diaghilev's 1909 production of the Polovtsian Dances. The pair quickly agreed on a working title, "The Great Sacrifice" (Russian: Velikaia zhertva); Diaghilev gave his blessing to the work, although the collaboration was put on hold for a year while Stravinsky was occupied with his second major commission for Diaghilev, the ballet Petrushka.In July 1911 Stravinsky visited Talashkino, near Smolensk, where Roerich was staying with the Princess Maria Tenisheva, a noted patron of the arts and a sponsor of Diaghilev's magazine World of Art. Here, over several days, Stravinsky and Roerich finalised the structure of the ballet. Thomas F. Kelly, in his history of the Rite premiere, suggests that the two-part pagan scenario that emerged was primarily devised by Roerich. Stravinsky later explained to Nikolai Findeyzen, the editor of the Russian Musical Gazette, that the first part of the work would be called "The Kiss of the Earth", and would consist of games and ritual dances interrupted by a procession of sages, culminating in a frenzied dance as the people embraced the spring. Part Two, "The Sacrifice", would have a darker aspect; secret night games of maidens, leading to the choice of one for sacrifice and her eventual dance to the death before the sages. The original working title was changed to "Holy Spring" (Russian:  Vesna sviashchennaia), but the work became generally known by the French translation Le Sacre du printemps, or its English equivalent The Rite of Spring, with the subtitle "Pictures of Pagan Russia". 
Question: What is the full name of the person that worked with Stravinsky on the "The Great Sacrifice?


Output: Nicholas Roerich.