Assertion: emerald's color | /r/HasProperty | produced
Facets:
value: from about the 10th century
type: TEMPORAL
value: reliably
type: DEGREE
Source sentences:
text: Celadon glazes were very common, with the green color being reliably produced from about the 10th century onwards; this was appreciated in Asia for resembling jade, the most prestigious material of all.
text: Other desirable colors of cubic zirconia can be produced including near colorless, yellow, pink, purple, green, and even multicolored.