Natural Language Processing as a Computational Problem*

ing away from the descriptive adequacy of this representation (in English, verbs do not agree in gender with their subjects), we can see how the feature structure above has structure sharing: the paths X2|inflection and X2|subject|inflection converge at the same node and from this node stems a substructure representing the inflectional properties shared by noun and verb. It is important to insist on this particular point: we cannot just say that both paths have the same value, or that it is equal or of the same kind; their value is exactly, physically, the same object. According to this, the following representation, without structure sharing, is different from the previous one: