Assertion: sword's blade | /r/HasProperty | crafted of 5160 carbon spring steel
Facets:
value: in modern times
type: TEMPORAL
value: often
type: TEMPORAL
Source sentences:
text: Swords and longer blades, in modern times, are often crafted of 5160 carbon spring steel, which is not as hard or brittle as a high carbon steel (such as 1095), but is more durable and less prone to breakage, and therefore more suitable for longer weapons.