Assertion: periodic comet | /r/CapableOf | receive permanent number prefix
Facets:
value: usually
type: TEMPORAL
value: after the second perihelion passage
type: TEMPORAL
Source sentences:
text: Periodic comets receive a permanent number prefix usually after the second perihelion passage, which is why there are a number of unnumbered periodic comets, such as P/2005 T5 (Broughton).