  GRILLBot is the winning system in the 2022 Alexa Prize TaskBot Challenge,
moving towards the next generation of multimodal task assistants. It is a voice
assistant to guide users through complex real-world tasks in the domains of
cooking and home improvement. These are long-running and complex tasks that
require flexible adjustment and adaptation. The demo highlights the core
aspects, including a novel Neural Decision Parser for contextualized semantic
parsing, a new "TaskGraph" state representation that supports conditional
execution, knowledge-grounded chit-chat, and automatic enrichment of tasks with
images and videos.
