Assertion: explorer | /r/HasProperty | designed
Facets:
Source sentences:
text: Explorer 1 was designed and built by the Jet Propulsion Laboratory (JPL), while a Jupiter-C rocket was modified by the Army Ballistic Missile Agency (ABMA) to accommodate a satellite payload; the resulting rocket known as the Juno I.
text: Explorer 1 was designed and built by the California Institute of Technology's JPL under the direction of Dr. William H. Pickering.