Assertion: pure heavy water | /r/ObjectUse | used in the water
Facets:
value: indefinitely
type: DEGREE
value: cooler
type: LOCATION
Source sentences:
text: Even if pure heavy water had been used in the water cooler indefinitely, it is not likely the incident would have been detected or caused harm, since no employee would be expected to get much more than 25% of their daily drinking water from such a source.