Assertion: alder's bark | /r/MadeOf | up to 20% tannin
Facets:
Source sentences:
text: The bark and the fruits contain up to 20% tannin, but they also contain so much dyestuff (imparting a dark red shade) that this limits their usefulness.
text: The bark and the fruits contain up to 20% tannin, but they also contain so much dyestuff (imparting a dark red shade) that this limits their usefulness.
text: The bark and the fruits contain up to 20% tannin.