Assertion: lr | /r/HasProperty | radioactive element
Facets:
Source sentences:
text: Lawrencium is a radioactive element and requires special precautions with handling and storage.
text: It is a radioactive element that does not exist in nature.
text: Lawrencium is a radioactive element, wholly synthesized from other elements.
text: It is a radioactive element that does not exist in nature.