Assertion: piloted spacecraft | /r/HasProperty | vostok
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Source sentences:
text: The Soviet Union (USSR) competed with its own single-pilot spacecraft, Vostok.
text: The Soviet Union demonstrated 24-hour launch pad turnaround and the capability to launch two piloted spacecraft, Vostok 3 and Vostok 4, in essentially identical orbits, on August 11 and 12, 1962.