Assertion: vitamin b12 | /r/HasProperty | required for dna synthesis
Facets:
Source sentences:
text: Vitamin B12 is required for proper red blood cell formation, neurological function, and DNA synthesis .
text: Vitamin B12 is a water-soluble vitamin required for red blood cell formation, neurological function, and DNA synthesis.
text: Vitamin B12 is required for proper red blood cell formation, nerve function and DNA synthesis.