Assertion: xylem's cell | /r/HasAspect | their primary cell walls
Facets:
value: during the spring growing season
type: TEMPORAL
Source sentences:
text: During the spring growing season, cells of the secondary xylem have a large internal diameter and their primary cell walls are not extensively thickened.
text: During the spring growing season, cells of the secondary xylem have a large internal diameter and their primary cell walls are not extensively thickened.