Assertion: mound | /r/HasProperty | developed with separate levels
Facets:
Source sentences:
text: Some mounds were developed with separate levels (or terraces) and aprons, such as Emerald Mound, which is one large terrace with two smaller mounds on its summit; or Monks Mound, which has four separate levels and stands close to 100 feet (30 m) in height.
text: Some mounds were developed with separate levels (or terraces) and aprons, such as Emerald Mound, which is one large terrace with two smaller mounds on its summit; or Monks Mound, which has four separate levels and stands close to 100 feet (30 m) in height.