Assertion: colleague's work | /r/CapableOf | identify three phases of mourning
Facets:
value: a century ago
type: TEMPORAL
Source sentences:
text: Half a century ago, John Bowlby’s groundbreaking work on grief identified three phases of mourning: one marked by defiance and anger; one by pain, despair, and disorganization; and one by slow reorganization and reinvestment in life.