Assertion: natural bristle | /r/ObjectUse | used in hamilton professional brushes
Facets:
Source sentences:
text: It is becoming increasingly important that a comprehensive range of synthetic brushes are made available for two reasons; Firstly, the quality and availability of the natural bristle used in Hamilton professional brushes is diminishing rapidly as the only source, China, farms the hogs more intensively and more rapidly to feed their booming population.