Assertion: formaldehyde | /r/IsA | human carcinogen
Facets:
Source sentences:
text: Formaldehyde is classified as a human carcinogen (cancer-causing substance).
text: Formaldehyde has been classified as a human carcinogen.
text: Formaldehyde is classified as a human carcinogen and has been linked to nasal and lung cancer, and with possible links to brain cancer and leukemia.
text: Formaldehyde is classified as a human carcinogen and has been linked to nasal and lung cancer, and with possible links to brain cancer and leukemia.