Problem: I know that the answer to the question "During what time frame could you no longer go on the observation deck?" is in "Melbourne's CBD, compared with other Australian cities, has comparatively unrestricted height limits and as a result of waves of post-war development contains five of the six tallest buildings in Australia, the tallest of which is the Eureka Tower, situated in Southbank. It has an observation deck near the top from where you can see above all of Melbourne's structures. The Rialto tower, the city's second tallest, remains the tallest building in the old CBD; its observation deck for visitors has recently closed.". Can you tell me what it is?

A: recently

Problem: I know that the answer to the question "Which single achieved a lower spot on the Billboard Hot 100, Live to Tell or True Blue?" is in "In June 1986, Madonna released her third studio album, True Blue, which was inspired by and dedicated to Sean Penn. Rolling Stone magazine was generally impressed with the effort, writing that the album "sound[s] as if it comes from the heart". It resulted in three singles making it to number-one on the Billboard Hot 100: "Live to Tell", "Papa Don't Preach" and "Open Your Heart", and two more top-five singles: "True Blue" and "La Isla Bonita". The album topped the charts in over 28 countries worldwide, an unprecedented achievement at the time, and became her best-selling studio album of her career to this date with sales of 25 million. In the same year, Madonna starred in the critically panned film Shanghai Surprise, for which she was awarded the Golden Raspberry Award for "worst actress". She made her theatrical debut in a production of David Rabe's Goose and Tom-Tom; the film and play both co-starred Penn. The next year, Madonna was featured in the film Who's That Girl. She contributed four songs to its soundtrack, including the title track and "Causing a Commotion".". Can you tell me what it is?

A: True Blue

Problem: I know that the answer to the question "What was the peak of the attacks?" is in "Five nights later, Birmingham was hit by 369 bombers from KG 54, KG 26, and KG 55. By the end of November, 1,100 bombers were available for night raids. An average of 200 were able to strike per night. This weight of attack went on for two months, with the Luftwaffe dropping 13,900 short tons (12,600 t) of bombs. In November 1940, 6,000 sorties and 23 major attacks (more than 100 tons of bombs dropped) were flown. Two heavy (50 short tons (45 t) of bombs) attacks were also flown. In December, only 11 major and five heavy attacks were made.". Can you tell me what it is?

A: In November 1940, 6,000 sorties and 23 major attacks (more than 100 tons of bombs dropped) were flown

Problem: I know that the answer to the question "what is the last nation mentioned?" is in "In 1952, the United States elected a new president, and on 29 November 1952, the president-elect, Dwight D. Eisenhower, went to Korea to learn what might end the Korean War. With the United Nations' acceptance of India's proposed Korean War armistice, the KPA, the PVA, and the UN Command ceased fire with the battle line approximately at the 38th parallel. Upon agreeing to the armistice, the belligerents established the Korean Demilitarized Zone (DMZ), which has since been patrolled by the KPA and ROKA, United States, and Joint UN Commands.". Can you tell me what it is?

A:
United States