Assertion: spacecraft's panel | /r/HasProperty | bolted to the instrument unit
Facets:
Source sentences:
text: The SLA was composed of four fixed 7-foot (2.1 m) tall panels bolted to the Instrument Unit on top of the S-IVB stage, which were connected via hinges to four 21-foot-tall (6.4 m) panels which would open from the top similar to flower petals.