Starting in 2007, the field of natural language generation (NLG) has organised shared-task evaluation events every year, under the
Generation Challenges umbrella. In the course of these shared tasks, a wealth of data has been created, along with associated task
definitions and evaluation regimes. In other contexts too, sharable NLG data is now being created. In this paper, we describe the online
repository that we have created as a one-stop resource for obtaining NLG task materials, both from Generation Challenges tasks and
from other sources, where the set of materials provided for each task consists of (i) task definition, (ii) input and output data, (iii)
evaluation software, (iv) documentation, and (v) publications reporting previous results.peer-reviewe