Assertion: dinosaur | /r/HasProperty | a group of reptiles
Facets:
Source sentences:
text: Dinosaurs are a group of reptiles that have lived on Earth for about 245 million years.
text: Dinosaurs are a group of reptiles that is no longer found, and only fossils remain for their study.
text: Dinosaurs are a group of reptiles that lived during the Mesozoic Era.
text: Dinosaurs are a group of reptiles that first appeared about 245 million years ago.