Anchor: But repeated isn't an accurate description here, since the shape is never the same twice.
Entailed: The shape is never the same, so repeated is not an accurate description.
Contradiction: The shape is boring and consistent throughout.
Contradiction: The altarpiece was created during the 14th century. 
Contradiction: There is a woman on a motorcycle.
Contradiction: A child buys a pear at a farmers market.
Contradiction: Orientalism was a prequel of Culture and Imperialism.