Assertion: nucleolus | /r/HasProperty | described
Facets:
value: between 1835
type: TEMPORAL
value: formally
type: MANNER
value: between 1839
type: TEMPORAL
Source sentences:
text: The nucleolus was formally described between 1835 and 1839, but it was another century before it was discovered to be associated with a specific chromosomal locus, thus defining it as a cytogenetic entity.