Assertion: tanned leather | /r/CreatedBy | labor-intensive process
Facets:
Source sentences:
text: Brain tanned leathers are made by a labor-intensive process that uses emulsified oils, often those of animal brains such as deer, cattle, and buffalo.
text: Brain tanned leathers are made by a labor-intensive process that uses emulsified oils, often those of animal brains such as deer, cattle, and buffalo.