Assertion: vein | /r/CapableOf | show to show differentiation
Facets:
value: simply
type: MANNER
value: as ‘blue’ in diagrams
type: OTHER
value: between the bright red arterial blood
type: LOCATION
Source sentences:
text: Veins are the largest blood vessels that carry de-oxygenated blood back to the heart, which is dark red in colour (but shown as ‘blue’ in diagrams simply to show differentiation between the bright red arterial blood).