The black jacket may not be rainproof.  The activity of the bicyclist may be something other than races.  The medical arts building may be something other than a hospital with not separate hospital present.


Context: "A man wearing a black jacket biking in front of a medical arts building." Claim: "A bicyclist in a rainproof black jacket races past the hospital."
Considering the context, is the claim true, false, or unknown?