Assertion: tower's level | /r/HasProperty | constructed
Facets:
value: from precast concrete
type: OTHER
value: from composite materials
type: OTHER
value: from the observation decks
type: OTHER
value: from structural steel
type: OTHER
Source sentences:
text: The upper levels were constructed from composite materials, structural steel, precast concrete and reinforced concrete, and the observation decks clad in aluminium with blue/green reflective glass.