Assertion: key's signature | /r/HasAspect | three flats
Facets:
value: in this case
type: TEMPORAL
Source sentences:
text: In this case, the key signature will have three flats (B♭, E♭, and A♭).
text: Its key signature has no flats and no sharps.
text: Its key signature has three flats: B, E, and A.