Assertion: boron | /r/HasProperty | released to lesser extent
Facets:
value: from sources
type: OTHER
value: by human activities
type: CAUSE
Source sentences:
text: Boron is also released, to a lesser extent, by human activities.
text: Boron is also released from anthropogenic sources to a lesser extent.
text: Boron is also released, to a lesser extent, from sources due to human activity.