Assertion: explosion | /r/AtLocation | sandia's opinion
Facets:
value: because of an overram of the powder
type: CAUSE
Source sentences:
text: The next day Schwoebel, Schuler, Cooper, and Borders publicly briefed the SASC in the Hart Senate Office Building on the results of their investigation, stating that, in Sandia's opinion, the explosion had occurred because of an overram of the powder caused by either an accident due to human error or an equipment failure.