Assertion: cardboard | /r/UsedFor | over a century
Facets:
Source sentences:
text: Cardboard is one of the most frequently used materials in the modern world and has been for over a century.
text: Cardboard is one of the most frequently used materials in the modern world and has been for over a century.
text: Cardboard is one of the most frequently used materials in the modern world and has been for over a century.