Assertion: birch's branch | /r/HasProperty | smooth
Facets:
Source sentences:
text: The red-brown, deeply furrowed bark on an old trunk breaks into ragged, closely appressed scales; the upper trunk and branches are smooth, salmon pink to rose cinnamon, with a metallic lustre.
text: Branches on older trees tend to be a smooth and shiny gray with much darker bark on the trunk.