Assertion: aspen's leaf | /r/HasProperty | favourite food of beavers
Facets:
Source sentences:
text: The bark and leaves of this tree are the favourite food of beavers, which use the branches to build their lodges and dams.
text: The bark and leaves of the aspen tree are the favourite food of beavers, and they use the branches and twigs to build their lodges and dams.