Assertion: dinosaur's fossil | /r/HasProperty | bone
Facets:
Source sentences:
text: Everything we know about non-avian dinosaurs is based on fossils, which include bones, teeth, footprints, tracks, eggs, and skin impressions.
text: Fossils of T Rex dung include bones that were swallowed with the rest of the prey.
text: These fossils include bones, eggs, footprints, and even traces of feathers.