Assertion: stadium's structure | /r/HasProperty | built
Facets:
value: underground
type: LOCATION
Source sentences:
text: Likewise, this definition does not count structures that are built underground or on the seabed, such as the Petronius Platform in the Gulf of Mexico.
text: the definition of a structure, a building and a tower
text: An air-supported (or air-inflated) structure is any building that derives its structural integrity from the use of internal pressurized air to inflate a pliable material (i.e. structural fabric) envelope, so that air is the main support of the structure, and where access is via airlocks.