Assertion: nitrous oxide | /r/ObjectUse | used for pain relief
Facets:
value: in hospitals
type: LOCATION
value: in dentistry
type: LOCATION
value: commonly
type: TEMPORAL
Source sentences:
text: Nitrous oxide is a colourless gas that is commonly used for sedation and pain relief, but is also used by people to feel intoxicated or 'high' .
text: When used for pain relief, Nitrous oxide is only
text: Nitrous oxide is a colourless gas used for pain relief in hospitals and dentistry.