1. A computer-implemented method for generating symbolic information for a first set of field images associated with a first field, the method comprising: receiving the first set of field images associated with the first field, the first set of field images associated with the first field cropped from a plurality of form images; retrieving a first label image associated with the first field, the first label image associated with the first field cropped from one of the plurality of form images; determining a match for the first label image from a classification dictionary; associating, with one or more processors, symbolic information corresponding to the match for the first label image with the first label image; determining a subject matter associated with the first label image using the symbolic information associated with the first label image; identifying a subset of the classification dictionary using the subject matter associated with the first label image; determining a match for each field image of the first set of field images from the subset of the classification dictionary; and associating symbolic information corresponding to the match for each field image with each corresponding field image of the first set of field images.