Assertion: haystack | /r/HasProperty | built by mit's lincoln laboratory
Facets:
value: for the united states air force
type: TRANSITIVE-OBJECT
Source sentences:
text: Haystack was initially built by MIT's Lincoln Laboratory for the United States Air Force and was known as Haystack Microwave Research Facility.
text: Haystack was initially built by MIT's Lincoln Laboratory for the United States Air Force and was known as Haystack Microwave Research Facility.