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Introduction
To get away from the personal attacks above maybe a separate section about the Introduction is required. The only issue I have is with the use of the word ""hard"" in the opening sentence. Sculpture is a three dimensional art but the materials do not need to be hard. Take Claes Oldenburg as a very prominent, prime example.
And the final sentence of the opening paragraph - how is ""text"" an established form of sculpture? As a surface decoration?   "