Assertion: slave's work | /r/CapableOf | concentrate on blake's relief etching
Facets:
value: as a technique
type: MANNER
Source sentences:
text: Most critical work has concentrated on Blake's relief etching as a technique because it is the most innovative aspect of his art, but a 2009 study drew attention to Blake's surviving plates, including those for the Book of Job: they demonstrate that he made frequent use of a technique known as "repoussage", a means of obliterating mistakes by hammering them out by hitting the back of the plate.