  This paper presents a novel Cross-document Abstract Meaning Representation
(X-AMR) annotation tool designed for annotating key corpus-level event
semantics. Leveraging machine assistance through the Prodigy Annotation Tool,
we enhance the user experience, ensuring ease and efficiency in the annotation
process. Through empirical analyses, we demonstrate the effectiveness of our
tool in augmenting an existing event corpus, highlighting its advantages when
integrated with GPT-4. Code and annotations:
https://github.com/ahmeshaf/gpt_coref
