Assertion: raven | /r/HasProperty | acrobatic flier
Facets:
Source sentences:
text: The raven is an acrobatic flier and has even been observed flying upside down.
text: You may not realize this but the Raven is actually an acrobatic bird and is thought to be equivalent to the more popular fliers such as hawks and falcons.
text: Ravens are acrobatic and agile flyers.
text: The raven is an acrobatic flier and has even been observed flying upside down.