Assertion: comet | /r/HasProperty | given provisional designation
Facets:
value: until 1994
type: TEMPORAL
Source sentences:
text: Until 1994, comets were first given a provisional designation consisting of the year of their discovery followed by a lowercase letter indicating its order of discovery in that year
text: Until 1994, comets were first given a provisional designation consisting of the year of their discovery followed by a lowercase letter indicating its order of discovery in that year