Assertion: nitrous oxide | /r/HasProperty | cheap
Facets:
value: for alcohol
type: OTHER
Source sentences:
text: In most countries, nitrous oxide is a legal drug that is widely available and cheap.
text: Nitrous oxide was regarded as a cheap substitute for alcohol and was popularized by the British scientist Sir Humphry Davy.
text: Finally, nitrous oxide is cheap and will continue to be used in the developing world where healthcare resources are more limited; therefore, further investigations are indicated to define the future of this drug in anesthetic and medical practice.