6. A computer program product for modifying a set of annotations that include metadata describing properties of associated text fragments within an annotated text corpus, the computer program product comprising a computer readable storage medium having program instructions embodied therewith, wherein the computer readable storage medium is not a transitory signal per se, the program instructions executable by a computer processing circuit to cause the circuit to perform the method comprising: receiving a query specifying parameters for annotations from the set of the annotations; extracting, from the set of annotations and by the query, a first entity subset of annotations, a second entity subset of annotations, and a relations subset of annotations between the first entity subset of annotations and the second entity subset of annotations, wherein each annotation in the first and second entity subset of annotations serves as an anchor for each respective relations subset annotation and each piece of contextual information; extracting, from the annotated text corpus, contextual information relative to the extracted annotations; generating a user interface having display frames populated by frame elements that include the entity subsets of annotations, the relations subset of annotations, and the contextual information; receiving, responsive to selections of the frame elements, input specifying modifications to the annotations; modifying, based on the input specifying modifications to the annotations, the set of annotations in the annotated text corpus; receiving additional input specifying a change to the particular annotation label; receiving additional input specifying a subset of the plurality of annotations; and modifying, based on the additional input, the particular annotation label for each of the annotations in the subset of the plurality of annotations having the shared particular annotation label.
6. A computer program product for modifying a set of annotations that include metadata describing properties of associated text fragments within an annotated text corpus, the computer program product comprising a computer readable storage medium having program instructions embodied therewith, wherein the computer readable storage medium is not a transitory signal per se, the program instructions executable by a computer processing circuit to cause the circuit to perform the method comprising: receiving a query specifying parameters for annotations from the set of the annotations; extracting, from the set of annotations and by the query, a first entity subset of annotations, a second entity subset of annotations, and a relations subset of annotations between the first entity subset of annotations and the second entity subset of annotations, wherein each annotation in the first and second entity subset of annotations serves as an anchor for each respective relations subset annotation and each piece of contextual information; extracting, from the annotated text corpus, contextual information relative to the extracted annotations; generating a user interface having display frames populated by frame elements that include the entity subsets of annotations, the relations subset of annotations, and the contextual information; receiving, responsive to selections of the frame elements, input specifying modifications to the annotations; modifying, based on the input specifying modifications to the annotations, the set of annotations in the annotated text corpus; receiving additional input specifying a change to the particular annotation label; receiving additional input specifying a subset of the plurality of annotations; and modifying, based on the additional input, the particular annotation label for each of the annotations in the subset of the plurality of annotations having the shared particular annotation label. 9. The computer program product of claim 6 , wherein the user interface includes a frame containing a particular document name in the annotated text corpus, wherein the method comprises: receiving input that specifies the particular document name in the annotated text corpus; and generating, responsive to the input that specifies the particular document name, a frame containing data from the particular document named.