Assertion: indigo dye | /r/ObjectUse | used for millennia
Facets:
value: in shades of blue
type: OTHER
value: to fabric
type: TRANSITIVE-OBJECT
value: to colour yarn
type: PURPOSE
value: in most regions of india
type: LOCATION
Source sentences:
text: Derived from the leaves of shrubs in the Indigofera family, indigo dye has been used for millennia in most regions of India to colour yarn and fabric (especially cotton) in shades of blue.