Assertion: platypus's bill | /r/CapableOf | lay egg
Facets:
Source sentences:
text: The platypus has webbed feet, a bill like a duck, lays eggs, and males have venomous spurs.
text: They're one of only a few venomous mammals (males have venomous spurs on their back feed), have a bill that detects electric fields, and lay eggs.