Assertion: conch's aperture | /r/CapableOf | face the observer
Facets:
Source sentences:
text: If the shell is held upright, with the spire up and the aperture facing the observer, then the aperture is on the right side.
text: If a coiled gastropod shell is held with the spire pointing upwards and the aperture more or less facing the observer, a dextral shell will have the aperture on the right-hand side, and a sinistral shell will have the aperture on the left-hand side.