You will be given a definition of a task first, then an example. Follow the example to solve a new instance of the task.
In this task, you're given a passage, further information available on a particular linked term from the statement, and a question. Your job is to generate the answer to the question by using the information provided. If there is no clear answer obtainable, output 'none'.

Passage: The group was occasionally diverted from strategic missions to carry out air support and interdiction missions. It supported Operation Overlord, the invasion of Normandy by attacking transportation targets, including bridges, along with airfields and strong points in France. On D Day, the squadron and the rest of the 446th Group led the first heavy bomber mission of the day. The 446th aided ground forces at Caen and Saint-Lo during July by hitting bridges, gun batteries, and enemy troops. During Operation Market Garden, the attempt to seize a bridgehead across the Rhine in the Netherlands, the 704th dropped supplies to allied troops near Nijmegen. It struck lines of communications during the Battle of the Bulge. During Operation Varsity in March 1945, it supplied ground and airborne troops near Wesel. The squadron flew its last combat mission on 25 April 1945 against Salzburg, Austria. The group had flown 273 missions and had lost 58 aircraft during the war,
. Link Information: Operation Market Garden was a failed World War II military operation fought in the Netherlands from 17 to 25 September 1944. Question: When did the operation during which the 704th dropped supplies to allied troops near Nijmegen begin?
Solution: from 17 to 25 September 1944
Why? The passage describes the 704th's actions during Operation Market Garden, and the answer specifies when the operation happened.

New input: Passage: In 1923 it was organised the first edition of leagues in the Kingdom of Yugoslavia where, beside the top-level national Yugoslav Football Championship, regional championships were also played. The clubs of the Drina Banovina, part of Littoral Banovina and Vrbas Banovina, territorially similar to present day Bosnia and Herzegovina, played within the Sarajevo Football Subassociation League until 1939. The champions of Subassociation Leagues were granted a place in the qualifiers to the Yugoslav Championship, a top national level. SASK (1923, 1924, 1925, 1926, 1927, 1928, 1930/31), Slavija (1929, 1930, 1932/33, 1934/35, 1935/36, 1936/37, 1937/38, 1938/39, 1939/40), FK Krajisnik Banja Luka (1935/36) were the clubs to manage to participate in the national league, first in 1923 when the championship was played in a cup system. In 1939 the Yugoslav league system was changed, with the creation of separate Serbian and Croato-Slovenian Leagues which will serve as qualifying leagues for the final phase of the Yugoslav Championship. The clubs from the Sarajevo Subassociation played their qualifications to the Serbian League, however Slavija Sarajevo managed to participate, in 193940 (3rd place) and 194041 (9th place) and played their qualifications to the Croatian-Slovenian League, however SASK managed to participate, and it did it in both occasions, in 193940 (5th place) and 194041 (5th place). That became the last season before the beginning of the Second World War.
Link Information: Peter I became the first king of Yugoslavia until his death in 1921. He was succeeded by his son Alexander I, who had been regent for his father. He was known as "Alexander the Unifier" and he renamed the kingdom "Yugoslavia" in 1929. Question: Who was the leader of Yugoslavia in 1923?
Solution:
Answer: Alexander I