Assertion: parachute's design | /r/CapableOf | give annular geometry
Facets:
Source sentences:
text: Some designs with a pull-down apex have the fabric removed from the apex to open a hole through which air can exit (most, if not all, round canopies have at least a small hole to allow easier tie-down for packing - these aren't considered annular), giving the canopy an annular geometry.