Assertion: gastropod's shell | /r/HasProperty | held with the aperture
Facets:
value: on the left
type: LOCATION
Source sentences:
text: This an example of a sinistral or left-handed shell, which means that if the shell is held with the aperture facing the observer, and the spire pointing up, then the aperture is on the left-hand side.
text: However, once it is understood that the planorbid shell is sinistral, if the shell is held with the aperture on the left and facing the observer, then the sunken spire side of the shell is uppermost.