Assertion: bone marrow's stem cell | /r/CapableOf | go through a series of maturing stages
Facets:
value: before , blood cells
type: TEMPORAL
value: as blast cells
type: MANNER
value: as precursor
type: MANNER
Source sentences:
text: Some new cells remain as stem cells and others go through a series of maturing stages, as precursor or blast cells, before becoming formed, or mature, blood cells.