person works with person on an equation
{"Image ImageWidth": "3872", "Image ImageLength": "2592", "Image BitsPerSample": "[8, 8, 8]", "Image PhotometricInterpretation": "2", "Image Make": "NIKON CORPORATION", "Image Model": "NIKON D60", "Image Orientation": "Horizontal (normal)", "Image SamplesPerPixel": "3", "Image XResolution": "200", "Image YResolution": "200", "Image ResolutionUnit": "Pixels/Inch", "Image Software": "Adobe Photoshop CS Windows", "Image DateTime": "2013:04:02 03:26:41", "Image YCbCrPositioning": "Co-sited", "Image ExifOffset": "292", "Thumbnail Compression": "JPEG (old-style)", "Thumbnail XResolution": "72", "Thumbnail YResolution": "72", "Thumbnail ResolutionUnit": "Pixels/Inch", "Thumbnail JPEGInterchangeFormat": "1102", "Thumbnail JPEGInterchangeFormatLength": "9138", "EXIF ExposureTime": "1/60", "EXIF FNumber": "4", "EXIF ExposureProgram": "Unidentified", "EXIF ISOSpeedRatings": "200", "EXIF ExifVersion": "", "EXIF DateTimeOriginal": "2013:03:27 15:06:59", "EXIF DateTimeDigitized": "2013:03:27 15:06:59", "EXIF ComponentsConfiguration": "", "EXIF CompressedBitsPerPixel": "2", "EXIF ShutterSpeedValue": "5906891/1000000", "EXIF ApertureValue": "4", "EXIF ExposureBiasValue": "0", "EXIF MaxApertureValue": "39/10", "EXIF SubjectDistance": "56/25", "EXIF MeteringMode": "Pattern", "EXIF LightSource": "Unknown", "EXIF Flash": "Flash fired, auto mode, return light detected", "EXIF FocalLength": "22", "EXIF SubSecTime": "10", "EXIF SubSecTimeOriginal": "10", "EXIF SubSecTimeDigitized": "10", "EXIF FlashPixVersion": "", "EXIF ColorSpace": "sRGB", "EXIF ExifImageWidth": "2075", "EXIF ExifImageLength": "1966", "Interoperability InteroperabilityIndex": "R98", "Interoperability InteroperabilityVersion": "[0, 0, 0, 0]", "EXIF InteroperabilityOffset": "976", "EXIF SensingMethod": "One-chip color area", "EXIF FileSource": "0", "EXIF SceneType": "0", "EXIF CVAPattern": "[0, 0, 0, 0, 0, 0, 0, 0]", "EXIF CustomRendered": "Normal", "EXIF ExposureMode": "Auto Exposure", "EXIF WhiteBalance": "Auto", "EXIF DigitalZoomRatio": "1", "EXIF FocalLengthIn35mmFilm": "33", "EXIF SceneCaptureType": "Standard", "EXIF GainControl": "None", "EXIF Contrast": "Normal", "EXIF Saturation": "Normal", "EXIF Sharpness": "Normal", "EXIF SubjectDistanceRange": "0"}