Assertion: format | /r/HasProperty | popular
Facets:
value: at the time
type: TEMPORAL
Source sentences:
text: With audio CDs, you can use Exact Audio Copy and FLAC, the Free Lossless Audio Codec, to make perfect digital copies that you can leave to your grandchildren, who will be able to convert them to whatever format is popular at the time.
text: The format doesn’t have to be a popular one to work well for you, but there’ll be more information available about working in the more common formats