Assertion: upstage | /r/HasProperty | developed by programmer douglas bagnall
Facets:
value: during 2003
type: TEMPORAL
Source sentences:
text: UpStage was developed during 2003 by programmer Douglas Bagnall, to realise the vision of cyberformance troupe Avatar Body Collision; the group had been creating live performance on the internet using free chat applications such as iVisit and the Palace, and wanted to create an application that better met their artistic needs.