Assertion: bloodhound's weight | /r/Causes | some of the rock
Facets:
value: to compress
type: PURPOSE
value: beneath
type: LOCATION
Source sentences:
text: The reason for this, according to Science magazine, is because nearly 20,000 years ago, the weight of massive ice glaciers "caused some of the rock beneath to compress and sink, and in the process displace the underlying semifluid mantle.