Talking through Procedures: An Intelligent Space Station Procedure Assistant Greg Aist author J Dowding author B A Hockey author M Rayner author J Hieronymus author D Bohus author B Boven author N Blaylock author E Campana author S Early author G Gorrell author S Phan author 2003 text Demonstrations conference publication aist-etal-2003-talking https://aclanthology.org/E03-2001/ 2003