caption: the equation of an fsa
exif: {"Image DocumentName": "Example NFSA Regular expression: (0 \uf0da 1)  1 Accepts string", "Image ImageDescription": "Guess. Regular expression: (0 1)  1. Accepts string", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}