Assertion: project sonar | /r/CapableOf | gather data
Facets:
value: in two stages
type: TEMPORAL
value: for endpoint studies
type: PURPOSE
Source sentences:
text: For endpoint studies, Project Sonar gathers data in two stages: In the first stage, all public IPv4 addresses (about 3.6 billion of them, excluding those opted-out) are scanned in an attempt to determine which have the respective service port open.