Assertion: epidermis's cell | /r/CapableOf | build up cytoplasmic supply of keratin
Facets:
value: in the synthetic phase
type: TEMPORAL
Source sentences:
text: In the synthetic phase, the cell builds up a cytoplasmic supply of keratin, a fibrous intermediate filament arranged in an alpha-helical coil pattern that serves as part of the cell's cytoskeleton.