TY - Generic T1 - Degree of Abstraction in Referring Expression Generation and its Relation with the Construction of the Contrast Set T2 - Fifth International Natural Language Generation Conference (INLG'08) Y1 - 2008 A1 - Hervás, Raquel A1 - Pablo Gervás JF - Fifth International Natural Language Generation Conference (INLG'08) CY - Ohio, USA ER -