metAMoRphosED, a graphical editor for Abstract Meaning Representation Johannes Heinecke author 2023-06 text Proceedings of the 19th Joint ACL-ISO Workshop on Interoperable Semantics (ISA-19) Harry Bunt editor Association for Computational Linguistics Nancy, France conference publication heinecke-boritchev-2023-metamorphosed https://aclanthology.org/2023.isa-1.4/ 2023-06 27 32