Assertion: boron | /r/ObjectUse | used as bleach
Facets:
Source sentences:
text: Boron as sodium perborate is used as a bleach.
text: Boron has been, and still is, used in bleaches, fiberglass, structural and refractory materials, glass and ceramics, and organic reagents.
text: Boron as sodium perborate is used as a bleach.