Wikipedia entity: Chestnut
Topics: chemical compound; constituents; acidity
Original sentence: It is an ellagic tannin and its main constituents are identified by castalagin (14.2%) and vescalagin (16.2%).It has a naturally low pH value, relatively low salts content, and high acids content.
Quantified sentence: It is an ellagic tannin and its main constituents are identified by some castalagin and vescalagin (16.2%).It has a naturally low pH value, relatively low salts content, and high acids content.
Quantifier: some
Percentage: 14.20%
Specificity: partially