Assertion: moray eel's skin | /r/ObjectUse | used as under layer
Facets:
value: on japanese swords
type: LOCATION
value: for the cord
type: PURPOSE
value: for leather wrap
type: PURPOSE
Source sentences:
text: The skin of the ray is used as an under layer for the cord or leather wrap (known as ito in Japanese) on Japanese swords due to its hard, rough, skin texture that keeps the braided wrap from sliding on the handle during use.