Assertion: tumor's cell | /r/CapableOf | become old
Facets:
Source sentences:
text: These cells can become old, damaged or no longer needed.
text: ﻿ ﻿ Cancer cells also fail to listen to signals that tell them to stop growing or commit cell suicide (apoptosis) when the cells become old or damaged.
text: ﻿ Cancer cells also fail to listen to signals that tell them to stop growing or commit cell suicide (apoptosis) when the cells become old or damaged.