Assertion: diver's tank | /r/HasProperty | marked with a nitrox tank band
Facets:
value: often
type: TEMPORAL
value: clearly
type: MANNER
Source sentences:
text: In recreational diving terms, enriched air nitrox (EAN) refers to any nitrogen/oxygen gas mixture with an oxygen concentration higher than the 21 percent found in normal air--32 percent oxygen is the most common--and tanks filled with EAN are often clearly marked with a nitrox tank band and have the mix percentage written somewhere near the tank valve.