Assertion: ink | /r/MadeOf | the soot or lamp black
Facets:
value: from an oil lamp
type: OTHER
Source sentences:
text: In the tenth century, Li’Ting-kuei of Huichou in Anwei province revolutionized the ink making process so that ink could be made from the soot or lamp black from an oil lamp.
text: In the tenth century, Li’Ting-kuei of Huichou in Anwei province revolutionized the ink making process so that ink could be made from the soot or lamp black from an oil lamp.