Design Feature:
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(1) Other irregular parallelograms, trapezia and quadrilaterals
(2)
(3) Quadrilaterals containing one or more circles, ellipses or polygons (specify the content)
(4) Quadrilaterals with dark surfaces or parts of surfaces
(5) Letters or numerals forming any other quadrilateral (surface or periphery)
(6) Letters presenting some other special form of writing
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