Assertion: black walnut's leaf | /r/HasProperty | oval
Facets:
Source sentences:
text: The leaves are oval and grow together in groups of five to nine alternating leaflets on a single stem.
text: The leaves of the black cherry tree are between 4 and 8 inches in length and 2 to 4 inches across, oblong or oval in shape, shiny and finely toothed along the edges.