Assertion: dandelion's root | /r/CapableOf | yield copper
Facets:
Source sentences:
text: Dandelion can be used as an ingredient for liquid fertiliser; rotted down in rainwater, the leaves and roots can yield the minerals sodium (Na), silicon (Si), manganese (Mn), calcium (Ca), potassium (K), phosphorous (P), iron (Fe) and copper (Cu).