Assertion: cobblestone | /r/HasProperty | strong
Facets:
Source sentences:
text: Because cobblestones are so strong, they will last for years.
text: The biggest benefit to using cobblestone as pavers to cover dirt streets and roads during the 15th century, is because cobblestone were the strongest natural material that was easily attained and available to man as cobblestones were also well known as being exceptionally durable.
text: In their own right, cobblestones are very impacting on any paved surface, are strong and long lasting too.