Assertion: blacksmith's anvil | /r/CapableOf | weigh over 800 tons
Facets:
value: sometimes
type: TEMPORAL
value: for a 12-ton hammer
type: PURPOSE
Source sentences:
text: An anvil for a power hammer is usually supported on a massive anvil block, sometimes weighing over 800 tons for a 12-ton hammer; this again rests on a strong foundation of timber and masonry or concrete.