1. A method for repairing a wrapper associated with an information source, wherein the wrapper comprises a first set of rules for extracting information and for assigning labels from a set of labels to extracted information, comprising: defining a first classifier, based on a content feature set of extracted and labeled information using the first set of rules, for extracting information and for assigning wrapper labels to the extracted information; providing a Web page from the information source; extracting information from the Web page using the first classifier and assigning one of the wrapper labels to the extracted information which satisfies the one assigned wrapper label's rules; defining a second classifier, based on the content feature set and a structure feature set of the one assigned wrapper label, for extracting information and for assigning wrapper labels to the extracted information; extracting information from the Web page using the second classifier and assigning a second one of the wrapper labels to the extracted information which satisfies the second assigned wrapper label's rules; and defining a repaired wrapper as the second classifier and the two labels in the set which have been assigned to extracted content information.