Assertion: sword's blade | /r/HasProperty | sanmei three plateconstruction
Facets:
value: usually
type: TEMPORAL
Source sentences:
text: Traditional jian blades are usually of sanmei (three plate) construction, which involved sandwiching a core of hard steel between two plates of softer steel.
text: Traditional Chinese blades (jians) are usually of sanmei (three plate) construction, which involved sandwiching a core of hard steel between two plates of softer steel.