input: When Mystique tracked down David years later to get revenge for "his" murder of Destiny, he awakened with his fractured mind healed. David had a new goal, to help his father realize his dream of human-mutant coexistence by killing Magneto, Xavier's greatest opponent, before he had a chance to amass power. He traveled twenty years into the past, when Xavier and Magneto were orderlies at the mental hospital. In the process, he loses his memory. Magneto then accidentally triggers his memory, causing David to go on a rampage, attacking Magneto and revealing the existence of mutants to the public decades too early. Several X-Men who were pulled back in time with him were unable to prevent him from attacking Magneto. Xavier, however, leaped into the path of the psi-knife (the focused totality of Legion's psionic powers) and was killed in Magneto's place, causing the formation of the Age of Apocalypse timeline.  Due to being trapped in the past by David's actions, Bishop enlisted the aid of the new reality's X-Men to travel back in time to confront Legion again. Bishop seized Legion's psi-blade and drove it into his own chest, allowing Legion to see the future that he caused. In his last moments, David apologized for what he did. David's mother, Gabrielle Haller, described having a "maternal loss" afterward, implying she miscarried before giving birth to David.  While David was considered deceased, some of his alternate personalities remained trapped between life and death, manifesting as spirits. When the spirits started terrorizing Israel, Excalibur was called to stop them. After learning that the spirits were refusing death, Meggan used her empathy to calm their rage, convincing them to go "towards the light."

Answer this question "Who was Magento?"
output: Magneto, Xavier's greatest opponent,

input: Takemitsu frequently expressed his indebtedness to Claude Debussy, referring to the French composer as his "great mentor". As Arnold Whittall puts it:  Given the enthusiasm for the exotic and the Orient in these [Debussy and Messiaen] and other French composers, it is understandable that Takemitsu should have been attracted to the expressive and formal qualities of music in which flexibility of rhythm and richness of harmony count for so much.  For Takemitsu, Debussy's "greatest contribution was his unique orchestration which emphasizes colour, light and shadow ... the orchestration of Debussy has many musical focuses." He was fully aware of Debussy's own interest in Japanese art, (the cover of the first edition of La mer, for example, was famously adorned by Hokusai's The Great Wave off Kanagawa). For Takemitsu, this interest in Japanese culture, combined with his unique personality, and perhaps most importantly, his lineage as a composer of the French musical tradition running from Rameau and Lully through Berlioz in which colour is given special attention, gave Debussy his unique style and sense of orchestration.  During the composition of Green (November Steps II, for orchestra, 1967: "steeped in the sound-color world of the orchestral music of Claude Debussy") Takemitsu said he had taken the scores of Debussy's Prelude a l'Apres-midi d'un Faune and Jeux to the mountain villa where both this work and November Steps I were composed. For Oliver Knussen, "the final appearance of the main theme irresistibly prompts the thought that Takemitsu may, quite unconsciously, have been attempting a latter-day Japanese Apres-midi d'un Faune". Details of orchestration in Green, such as the prominent use of antique cymbals, and tremolandi harmonies in the strings, clearly point to the influence of Takemitsu's compositional mentor, and of these works in particular.  In Quotation of Dream (1991), direct quotations from Debussy's La Mer and Takemitsu's earlier works relating to the sea are incorporated into the musical flow ("stylistic jolts were not intended"), depicting the landscape outside the Japanese garden of his own music.

Answer this question "What was Takemitsu's opinion of Debussy?"
output: Takemitsu frequently expressed his indebtedness to Claude Debussy, referring to the French composer as his "great mentor".

input: When World War I broke out in 1914, David was a strenuous supporter of the war effort, supporting the campaign for conscription. In August 1915, after reading reports about mining operations and tunnelling during the Gallipoli Campaign, along with Professor Ernest Skeats, a professor at the University of Melbourne, David wrote a proposal to Senator George Pearce, the Australian Defence Minister, suggesting that the government raise a military force to undertake mining and tunnelling. After the proposal was accepted, David used his advocacy and organisational abilities to set up the Australian Mining Corps, and on 25 October 1915 he was appointed as a major, at the age of 57.  The first contingent of the corps consisted of 1,300 officers and men that were initially organised into two battalions before being reorganised into three tunnelling companies, as well as an electrical and mechanical mining company. After departing Australia for the United Kingdom in February 1916, the corps arrived on the Western Front in May 1916. Given the title 'Geological Adviser to the Controllers of Mines in the First, Second and Third Armies', David became relatively independent and spent his time in geological investigations, using his expertise to advise on the construction of dugouts, trenches, and tunnels, the siting of wells for provision of pure drinking water from underground supplies, giving lectures, and producing maps. In September 1916 he fell to the bottom of a well he was examining, breaking two ribs and rupturing his urethra. He was invalided to London but returned to the Front in November, assuming the role of geological technical advisor to the British Expeditionary Force.  On 7 June 1917 his wartime contribution culminated in the mining of German positions in the Battle of Messines. In January 1918, David was awarded the Distinguished Service Order and in November he was promoted to lieutenant colonel. The war having concluded, he was demobilised in 1919. He was also Mentioned in Despatches twice.

Answer this question "Do you know how old he was when this happened?"
output:
25 October 1915 he was appointed as a major, at the age of 57.