Assertion: tower's structure | /r/HasProperty | supported by its buoyancy
Facets:
value: partially
type: DEGREE
Source sentences:
text: Additionally, the Petronius Platform stands 610 metres (2,001 ft) above its base on the bottom of the Gulf of Mexico, but only the top 75 metres (246 ft) of this oil and natural gas platform are above water, and the structure is thus partially supported by its buoyancy.