Assertion: brainstem's structure | /r/HasProperty | added
Facets:
value: artificially
type: MANNER
Source sentences:
text: In addition, some of the reconstructions were minimally retouched using Adobe Photoshop in order to improve their didactic value and to remove certain artifacts, but no structure of any kind was added artificially (thus, for example, the cranial nerves are only visible on the brainstem images).