Assertion: train | /r/CapableOf | spread out over pond
Facets:
value: at a point
type: TEMPORAL
value: after a sudden disturbance
type: TEMPORAL
Source sentences:
text: Thus, in a train of waves spreading out over a pond after a sudden disturbance at a point, the wave front travels at only half the speed of the crests, which appear to run through the packet of waves and disappear at the front.