Assertion: hemoglobin's oxygen | /r/HasProperty | transported in bulk
Facets:
value: for reasons of economy
type: CAUSE
value: often
type: TEMPORAL
Source sentences:
text: For reasons of economy, oxygen is often transported in bulk as a liquid in specially insulated tankers, since one liter of liquefied oxygen is equivalent to 840 liters of gaseous oxygen at atmospheric pressure and 20 °C (68 °F).