De-Constraining Text Generation Stephen Beale author Sergei Nirenburg author Evelyne Viegas author Leo Wanner author 1998-08 text Natural Language Generation Eduard Hovy editor Association for Computational Linguistics Niagara-on-the-Lake, Ontario, Canada conference publication beale-etal-1998-de https://aclanthology.org/W98-1406/ 1998-08