Assertion: foam | /r/HasProperty | behind other materials
Facets:
value: in both cases
type: TEMPORAL
value: usually
type: TEMPORAL
Source sentences:
text: In both cases, the foam is usually behind other materials: flexible foams are behind upholstery fabrics in commercial and domestic furniture; rigid foams are between metal, or plastic walls/sheets of most refrigerators and freezers, or other surface materials in the case of thermal insulation panels in the construction sector.