Assertion: spider web | /r/CapableOf | exist for at least 100 million years
Facets:
Source sentences:
text: Spider webs have existed for at least 100 million years, as witnessed in a rare find of Early Cretaceous amber from Sussex, southern England.
text: Spider webs have existed for at least 100 million years, as witnessed in a rare find of Early Cretaceous amber from Sussex, southern England.