Problem: Does "But in spite of these difficulties, the Empire remained a major expansionist power until the Battle of Vienna in 1683, which marked the end of Ottoman expansion into Europe." answer the question "What battle took place in 1683?" OPTIONS:
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A: yes

Problem: Does "From 1942 onward Menzies had maintained his public profile with his series of "The Forgotten People" radio talkssimilar to Franklin D. Roosevelt's "fireside chats" of the 1930sin which he spoke of the middle class as the "backbone of Australia" but as nevertheless having been "taken for granted" by political parties." answer the question "To what are Menzies' "Forgotten People" radio talks compared to?" OPTIONS:
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A: yes

Problem: Does "Ultimately though, they did install a 15-pin expansion port on the front of the console so that an arcade-style joystick could be used optionally." answer the question "What was installed on the front of the console so the joystick could be used?" OPTIONS:
- yes
- no

A:
yes