Assertion: dinosaur's neck | /r/ObjectUse | used for intraspecific combat
Facets:
Source sentences:
text: A 2015 study of the necks of Apatosaurus and Brontosaurus found many differences between them and other diplodocids, and that these variations may have shown that the necks of Apatosaurus and Brontosaurus were used for intraspecific combat.