Assertion: puffin | /r/HasProperty | unmistakable birds
Facets:
Source sentences:
text: Puffins are unmistakable birds with their black back and white underparts, distinctive black head with large pale cheeks and their tall, flattened, brightly-coloured bill.
text: The puffin is an unmistakeable bird: its top half is black, with a white belly and cheeks.