Assertion: mound's building | /r/CapableOf | continue for 500 years
Facets:
Source sentences:
text: Watson Brake was being constructed nearly 2,000 years before the better-known Poverty Point, and building continued for 500 years.
text: Watson Brake was being constructed nearly 2,000 years before the better-known Poverty Point, and building continued for 500 years.