Assertion: satellite | /r/ObjectUse | used for communication purposes
Facets:
value: often
type: TEMPORAL
Source sentences:
text: Such satellites are often used for communication purposes; a geosynchronous network is a communication network based on communication with or through geosynchronous satellites.
text: This is in honor of Arthur C. Clarke, the man who first suggested in 1945 that satellites in geosynchronous orbits could be used for communications purposes.