Assertion: duck's foot | /r/HasAspect | blood vessels
Facets:
Source sentences:
text: The duck’s feet cannot feel cold even if it swims in icy cold water because their feet have no nerves or blood vessels.
text: Well, the reason for this is because its feet have no nerves or blood vessels!
text: Their feet have no nerves or blood vessels, which mean that they won't feel chill from swimming in icy water.