Premise: On 20 July 1969, Neil Armstrong became the first human being to set foot on the moon. Armstrong was a veteran aviator: he had flown 78 combat missions over Korea as a Navy fighter pilot, then joined NASA as a civilian test pilot. He was accepted into the astronaut corps in 1962. Armstrong was the pilot of the Gemini 8 mission (launched 16 March 1966) and then was named commander for the Apollo 11 mission of 1969.
Hypothesis: Neil Armstrong was the first man who landed on the Moon.
Label: entailment