Assertion: opossum | /r/HasProperty | living fossils
Facets:
value: quite often
type: DEGREE
value: frequently
type: TEMPORAL
Source sentences:
text: Opossums are frequently considered to be "living fossils", and as a result are often used to approximate the ancestral therian condition in comparative studies.
text: Opossums are quite often referred as ‘the living fossil’, as they have been residing on earth since the dinosaur age.