Assertion: willow's bark | /r/MadeOf | salicylic acid
Facets:
Source sentences:
text: The bark contains salicylic acid, an ingredient later used to make aspirin.
text: They also have very thick scaly bark which offers protection from the elements and contains salicylic acid (a plant hormone), which is toxic in large amounts.
text: They also have very thick scaly bark which offers protection from the elements and contains salicylic acid (a plant hormone), which is toxic in large amounts.
text: The bark of the tree contains salicylic acid, a chemical compound similar to aspirin (acetylsalicylic acid).