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solid ENO{TESTFLAG} facet normal 1.0 0 0 outer loop vertex 0 1 0 vertex 0 1 1 vertex 0 0 1 endloop endfacet facet normal 0 0 1.0 outer loop vertex 1 0 0 vertex 1 1 0 vertex 0 1 0 endloop endfacet endsolid