1. A system for improved sentence parsing having a computer, a display screen receiving display signals from the computer forming a plurality of display objects on the screen and a cursor image on the screen, and a cursor control element for user control providing i) a cursor control signal to the computer specifying the position of the cursor, and ii) a cursor action signal having attach and detach states to attach and release the cursor to an object underlying the cursor, said underlying object movable with the cursor during the attach state of the cursor action signal, and dropping the object in the current position thereof responsive to the detach state of the cursor action signal, said computer receiving an input sentence signal encoding the characters comprising a sentence and generating therefrom a meta-tag listing of the sentence, and providing according to a preselected parsing algorithm, an initial meta-tag listing signal encoding a parsed version of the noun, verb, and prepositional phrases of the sentence, wherein the computer further comprises: a) a display element receiving the initial meta-tag listing signal, and producing an initial parsed image display signal for the display screen, said initial parsed image display signal creating on the display screen the sentence text arranged in original order, and having on successive lines, the noun, verb, and prepositional phrases of the sentence with indentations specifying the parsing relationships among them; b) a format element receiving the parsed sentence signal and creating an excon image for each phrase in the sentence in an expandable container (excon) format, each said image including the phrase and a decoration unique to that phrase, and encoding the excon format in an excon format signal defining the shape of each excon image and an initial topologic relationship of each excon image to the other excon images specifying the initial parsing; and c) a correction element receiving the excon format signal and the cursor control and action signals, and responsive thereto attaching the cursor to an excon image, moving the cursor and the excon image, and then detaching the cursor from the excon image, and providing a display signal creating an image following said attaching, moving, and detaching activities, and responsive to the change from the attach to the detach state of the cursor action signal, producing a final parsed image display signal creating on the display screen a final topologic relationship of each excon image to the other excon images specifying the altered parsing, wherein the sentence text has on successive lines, the noun, verb, and prepositional phrases of the sentence with indentations specifying the final parsing.