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Is the glass full of water or is the glass empty with nothing in it?
It might not be a glass it could be a water bottle it cannot be determined if it is full or empty or if it is even a glass.; The glass could be full, or it could be half full, or it could be empty. The image cannot determine if the glass is empty or full, or maybe it's not a glass.; The glass can't be seen well enough to be able to determine if it is full or empty.