Assertion: dinosaur's number | /r/HasProperty | found since 1990
Facets:
Source sentences:
text: Since the 1990s, a number of additional feathered dinosaurs have been found, providing even stronger evidence of the close relationship between dinosaurs and modern birds.
text: Since the 1990s, a number of additional feathered dinosaurs have been found, providing even stronger evidence of the close relationship between dinosaurs and modern birds.