Assertion: hardwood's structure | /r/HasProperty | the reason
Facets:
Source sentences:
text: Hardwoods have a denser structure, which is the reason they are usually harder and heavier.
text: Hardwoods have a denser structure, which is the reason they are usually harder and heavier.
text: Hardwoods have a denser structure, which is the reason they are usually harder and heavier.