A kolam of a 2x3 dot array
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The VISA Interlink Logo [1]
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A pentagonal table by Bob Mackay [2]
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The Utah State Parks logo
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As impossible object ("Penrose" pentagram)
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Folded ribbon which is single-sided (more complex version of Möbius Strip).
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Alternate pentagram of intersecting circles.
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Partial view of US bicentennial logo on a shirt seen in Lisboa [3]
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Non-prime knot with two 5_1 configurations on a closed loop.
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Sum of two 5_1s, Vienna, orthodox church
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This sentence was last edited by Dror.
Sometime later, Scott added this sentence.