Assertion: fold | /r/CapableOf | cross each other
Facets:
value: at right angles
type: MANNER
Source sentences:
text: The parity condition implies that the creases between stamps i and i + 1, and between stamps j and j + 1, appear on the same side of the stack of folded stamps, but the cyclic ordering condition implies that these two creases cross each other, a physical impossibility.
text: The creases therefore cross each other at right angles.