One cannot be walking with a sign for John's Pizza and Gyro in the background and sitting down with a sign in his arms.


Context: "Woman in white in foreground and a man slightly behind walking with a sign for John's Pizza and Gyro in the background." Claim: "The man is sitting down while he has a sign for John's Pizza and Gyro in his arms."
Considering the context, is the claim true, false, or unknown?