Assertion: ping | /r/CapableOf | begin his political career
Facets:
value: as chief of staff
type: MANNER
value: to omar bongo
type: TRANSITIVE-OBJECT
value: on returning to gabon
type: TEMPORAL
Source sentences:
text: On returning to Gabon in 1984, Ping began his political career as chief of staff to Omar Bongo, President of the Gabonese Republic.