Assertion: energy gamma ray | /r/CapableOf | travel in straight line
Facets:
value: from their source
type: OTHER
value: in space-time
type: TEMPORAL
value: to an observer
type: TRANSITIVE-OBJECT
Source sentences:
text: Discounting the relatively weak effect of gravity, they travel in a straight line from their source to an observer.
text: They travel in a straight line (in space-time) from their source to an observer.