Assertion: emerald | /r/CapableOf | strengthen memory
Facets:
Source sentences:
text: It increases mental acuity, strengthens memory and inspires eloquence in speech.
text: In antiquity, Emerald was to be worn in a ring to prevent giddiness, and strengthen the memory.
text: It was considered a gemstone of universal sight, strengthening memory, increasing intelligence, and giving the wearer the ability to foretell the future, especially if put on the tongue or worn on the left side of the body.