Kenneth Arnold

Target entity: Kenneth Arnold
Context triple: [1947 Kenneth Arnold sighting, hasMainParticipant, Kenneth Arnold]

• A. Donald Keyhoe
  Donald Keyhoe was an American Marine Corps officer-turned-author best known as an early and influential proponent of the idea that UFOs were real and possibly extraterrestrial.
• B. Hubertus Strughold
  Hubertus Strughold was a German-born aerospace medicine physician who became known as the “father of space medicine” in the United States after World War II, despite controversy over his involvement in Nazi-era human experiments.
• C. Walter Tibbets
  Walter Tibbets is an individual notable enough to be specifically cited as a bearer of the surname Tibbets.
• D. Andrew Tibbets
  Andrew Tibbets is an individual notable enough to be specifically cited as a bearer of the surname Tibbets.
• E. Francis Gary Powers
  Francis Gary Powers was an American U-2 spy plane pilot whose shootdown and capture over the Soviet Union in 1960 became a major Cold War flashpoint.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Target entity: Kenneth Arnold
Target entity description: Kenneth Arnold was an American aviator whose 1947 report of seeing unusual flying objects near Mount Rainier popularized the term "flying saucers" and is often considered the start of the modern UFO era.

• A. Donald Keyhoe
  Donald Keyhoe was an American Marine Corps officer-turned-author best known as an early and influential proponent of the idea that UFOs were real and possibly extraterrestrial.
• B. Hubertus Strughold
  Hubertus Strughold was a German-born aerospace medicine physician who became known as the “father of space medicine” in the United States after World War II, despite controversy over his involvement in Nazi-era human experiments.
• C. Walter Tibbets
  Walter Tibbets is an individual notable enough to be specifically cited as a bearer of the surname Tibbets.
• D. Andrew Tibbets
  Andrew Tibbets is an individual notable enough to be specifically cited as a bearer of the surname Tibbets.
• E. Francis Gary Powers
  Francis Gary Powers was an American U-2 spy plane pilot whose shootdown and capture over the Soviet Union in 1960 became a major Cold War flashpoint.
• F. None of above. chosen