Assertion: xenon's use | /r/HasProperty | banned by world anti-doping agency
Facets:
value: in 2014
type: TEMPORAL
Source sentences:
text: A mixture of oxygen with very high levels of xenon has been breathed by athletes prior to competition to boost erythropoietin (EPO) levels and increase red blood cells and thus enhance performance; such use was banned by the World Anti-Doping Agency in 2014.