Assertion: emerald | /r/HasProperty | subjected to a variety of treatments
Facets:
value: to enhance their beauty
type: PURPOSE
Source sentences:
text: However, emeralds are subjected to a variety of treatments (ranging from highly sophisticated means to backyard experimentations) to enhance their beauty and clarity that eventually improves the look, makes them more saleable and of course fetches a price way higher than it would have before treatment.