Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Capital Cities and Tombs of the Ancient Koguryo Kingdom' has mentioned 'Earth' in the following places:
Occurrence Sentence Text Source
Some of the tombs have elaborate ceilings designed to roof wide spaces without columns and carry the heavy load of a stone or earth tumulus (mound) was placed above them.
The tombs of the nobles have stone chambers covered with earth mounds and are decorated with wall paintings, depicting scenes of daily life, sports, hunting, nature, gods, fairies, and dragons.