Synonymie de mots et synonymie de phrases
Classes of synonyms are typically established according to the criterion that the rest of the sentence in which they can alternate remains the same; that is, the structure does not change and the various elements remain in the same place. This approach recognises the synonymy between, for example, <i>accueillir</i> and <i>recevoir</i>.<br /><i>Londres accueille/reçoit le Premier ministre français<br /></i>(London welcomes/receives the French Prime Minister)<br />but not between these verbs and se rendre, in spite of the fact that the sentence:<br /><i>Le Premier ministre français s'est rendu à Londres</i><br />(The French Prime Minister went to London)<br />contains almost the same information (the elements being the same, but their syntactic position having changed). To extend the notion of synonymy to allow for this syntactic variability, it is necessary to know, for each verb construction, the different positions that the associated nouns may occupy, and their respective semantic roles. The exhaustive syntactic classification of verbs established at LADL makes such an approach possible.