Question: Akihito, the current Emperor of Japan, visited Afghanistan in 1971 with whom?

full_context: Document 1: Takako Shimazu: Takako Shimazu (島津貴子 , Shimazu Takako , born 2 March 1939) , born Takako, Princess Suga (清宮貴子内親王 , Suga-no-miya Takako Naishinnō ) , is a member of the Imperial House of Japan. She is the fifth and youngest daughter of Emperor Shōwa and Empress Kōjun, and the youngest sister of the current Emperor of Japan, Akihito. She married Hisanaga Shimazu on 3 March 1960. As a result, she gave up her imperial title and left the Japanese Imperial Family, as required by law.
Document 2: Bahá'í Faith in Afghanistan: The Bahá'í Faith in Afghanistan was introduced in 1880s when some Baha'is visited Afghanistan. However, it wasn't until the 1930s that a Bahá'í community was established there. The first Bahá'í administrative institution Local Spiritual Assembly was elected in 1948 in Kabul and then was re-elected in 1969. Though the population had perhaps reached thousands, under the Soviet invasion of Afghanistan and the harsh rule of the Taliban the Bahá'ís lost the right to have any institutions and many fled. Although the Association of Religion Data Archives estimated there were some 15000 Bahá'ís in 2005, the Bahá'ís in Afghanistan number at approximately 400 according to a more recent 2007 US estimate.
Document 3: Princess Mako of Akishino: Princess Mako of Akishino (眞子内親王 , Mako Naishinnō , born 23 October 1991) is the first child and oldest daughter of Fumihito, Prince Akishino and Kiko, Princess Akishino, and a member of the Japanese Imperial Family. She is the eldest grandchild of Emperor Akihito and Empress Michiko.
Document 4: Afghanistan–Japan relations: Diplomatic relations between Afghanistan and Japan (Pashto: د افغانستان او جاپان اړیکې‎ , Japanese: 日本とアフガニスタンの関係 ) were established in 1931. In 1971, Crown Prince Akihito and Princess Michiko visited Afghanistan. After the Soviet invasion in 1979, Japan closed down its embassy and did not recognize any of the warring factions. In 2002 Japan reopened the embassy in Kabul. Since then, Japan has engaged in various types of assistance to Afghanistan.
Document 5: Visa requirements for Afghan citizens: Visa requirements for Afghan citizens are administrative entry restrictions by the authorities of other states placed on citizens of Afghanistan. As of 1 January 2017, Afghan citizens had visa-free or visa on arrival access to 20 countries and territories, ranking the Afghan passport 104th in terms of travel freedom (Lowest of all passports) according to the Henley visa restrictions index.
Document 6: Abdul Rahim Ghafoorzai: Abdul Rahim Ghafoorzai (d. August 21, 1997) was a politician and diplomat of Afghanistan. He was an ethnic Pashtun, a member of the Barakzai Mohammadzai tribe. During the 1970s he entered the Afghan foreign service. He was sent to the United States to represent the political administration supported by the Soviet Union. As the Ambassador to the UN, Mr. Ghafoorzai thought it his duty to call on the global partners to denounce the Soviet invasion in 1979. From then until 1992, he worked as a representative official to trigger international support against the regime that the Soviets had set up in Afghanistan. When the communist government fell in 1992, Ghafoorzai acted as an intermediary to unite the factions of Afghanistan. He worked in the United Nations until 1995, and then became deputy foreign minister. He became foreign minister in July 1996. in September 1996 the government troops withdrew from Kabul and the Taliban captured Afghanistan's capital, Kabul, The International community did not recognize the Taliban as Afghanistan legitimate government except Pakistan, United Arab Emirates and Saudi Arabia, the Islamic State of Afghanistan government established the new cabinet in Mazar e Sharif in the north of Afghanistan, meanwhile the Afghanistan Embassies and the Permanent Mission of Afghanistan to the United Nations was in control of Islamic State of Afghanistan as legitimate representative of Afghanistan. Ghafoorzai continued as Afghanistan Foreign Minister until August 11, 1997, just 10 days before his death, he was appointed prime minister of the Islamic State of Afghanistan government. He was killed in a plane crash in Bamyan Province when he was going to negotiate to form his cabinet with their allies.
Document 7: War in Afghanistan (1978–present): The War in Afghanistan began on 27 April 1978, when the People's Democratic Party of Afghanistan (PDPA) took power in a military coup, known as the Saur Revolution. Most of Afghanistan subsequently experienced uprisings against the PDPA government. The Soviet war in Afghanistan began in December 1979 to replace the existing communist government. Afghanistan's resistance forces, known as the mujahideen, fought against the Soviet intervention in Afghanistan. Some factions received support by the United States, with the Pakistani ISI serving as the U.S. middleman, and Saudi Arabia. The Soviet Union had to withdraw its troops in February 1989. The Soviet-backed Afghan communist government survived for three more years until the fall of Kabul in 1992.
Document 8: Afghan Post: Afghan Post is the national post office of Afghanistan. It is responsible for providing postal service in Afghanistan. Afghanistan first established a postal service in 1870, where it received international recognition. On the eve of the Soviet invasion it had grown into one of the stronger regional postal services, able to send and receive letters from anywhere in the world in a timely manner. During the 1990s the Afghan postal service lay in near total ruin, undone by the nation's civil war. Sending a letter usually meant having to find someone traveling in the direction of the recipient willing to carry a note and hoping for the best. Since the civil war, the postal service has reinvented itself with offices in all 34 provinces, and, it is close to having offices in all 364 districts. As the government struggles to develop despite an excess of foreign aid, the post office has quietly managed to become one of the most efficient national institutions – and with extremely limited international assistance. Though street addresses are a foreign concept in Afghanistan, the postal service manages to do house deliveries. The Afghan postal service has turned into a promising administration.
Document 9: Masako, Crown Princess of Japan: Masako, Crown Princess of Japan (皇太子徳仁親王妃雅子 , Kōtaishi Naruhito Shinnōhi Masako ) , born Masako Owada (小和田雅子 , "Owada Masako" ) on 9 December 1963, is the wife of Naruhito, Crown Prince of Japan, who is the eldest son of Emperor Akihito and Empress Michiko and the heir apparent to the Chrysanthemum Throne. She is a member of the Imperial House of Japan through marriage. Should the Crown Prince ascend the throne as expected upon his father's abdication, Masako will become empress consort.
Document 10: Kazuko Takatsukasa: Kazuko Takatsukasa (鷹司和子 , Takatsukasa Kazuko , 30 September 1929 – 26 May 1989) , formerly Kazuko, Princess Taka (孝宮和子内親王 , Taka-no-miya Kazuko Naishinnō ) , was the widow of Toshimichi Takatsukasa and third daughter of Emperor Shōwa and Empress Kōjun. She was an elder sister to the present Emperor of Japan, Emperor Akihito. She married Toshimichi Takatsukasa on 21 May 1950. As a result, she gave up her imperial title and left the Japanese Imperial Family, as required by law.
Document 11: Kiko, Princess Akishino: Kiko, Princess Akishino (文仁親王妃紀子 , Fumihito Shinnōhi Kiko ) , born 11 September 1966 as Kiko Kawashima (川嶋紀子 , "Kawashima Kiko" ) , is the wife of Fumihito, Prince Akishino, the second son of Emperor Akihito and Empress Michiko of Japan. She is also known as Princess Kiko.
Document 12: Princess Kako of Akishino: Princess Kako of Akishino (佳子内親王 , Kako Naishinnō , born 29 December 1994) is the second daughter of Fumihito, Prince Akishino and Kiko, Princess Akishino, and a member of the Japanese Imperial Family. She is the second-eldest grandchild of Emperor Akihito and Empress Michiko.
Document 13: Empress Michiko: Michiko (美智子 ) , born Michiko Shōda (正田美智子 , Shōda Michiko ) on 20 October 1934, is the Empress of Japan as the wife of Akihito, the current Emperor of Japan reigning from 7 January 1989. She succeeded her mother-in-law, Empress Nagako (Kōjun), consort of Emperor Hirohito (Shōwa).
Document 14: Afghanistan–United States relations: Afghanistan–United States relations can be traced to 1921 but the first contact between the two occurred further back in the 1830s when the first recorded person from the United States was visiting Afghanistan. In the last decade, Afghan-American relations have become stronger than ever before. Afghanistan and the United States have a very strong and friendly strategic partnership. In 2012, relations became even closer when the President of the United States, Barack Obama declared Afghanistan a Major non-NATO ally. According to a 2012 BBC poll, the U.S. was the most favored country in Afghanistan.
Document 15: Islamic Unity of Afghanistan Mujahideen: The Islamic Unity of Afghanistan Mujahideen, also known as the Seven Party Mujahideen Alliance or Peshawar Seven, was an Afghan alliance formed in either 1981 or 1985 (see Alliance Formation below) by the seven Afghan mujahideen parties fighting against the Soviet-backed Democratic Republic of Afghanistan forces in the Soviet-Afghan War. The alliance sought to function as a united diplomatic front towards the world opinion, and sought representation in the United Nations and Organisation of the Islamic Conference.
ground_truth: Princess Michiko