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Symmetries: 
   Unsymmetric, chiral
Two configurations for this shape 
(click on the image for building instructions):
1: 
 [chiral, one flap, twin is nonconstructible, code: RRmURmUmLvRmUm] [MP 7/11/2014]
2: 
 [chiral, one flap, twin is nonconstructible, code: RUmLmULmLmRvUv]