Assertion: bassinet's mattress | /r/HasProperty | waterproof
Facets:
value: for easy cleaning
type: PURPOSE
Source sentences:
text: The fabric of the cradle is machine washable, and the mattress is removable and waterproof for easy cleaning.
text: Mattress is waterproof and contains no toxic flame retardants.
text: The mattress is waterproof and a machine-washable sheet is included.