Assertion: hawthorn | /r/ObjectUse | used since middle ages
Facets:
value: for heart problems
type: PURPOSE
Source sentences:
text: Hawthorn has been used since the Middle ages, with some accounts going back as far as the first century to Greek herbalist Dioscorides.
text: Hawthorn is one of the oldest medicinal plants known in Europe, where it has been used since the Middle Ages for heart problems.