Abstract
Similarly to AMR, Uniform Meaning Representation (UMR) is a graph-based formalism with nodes as concepts and edges as relations between them. When used to represent natural language semantics, words in a sentence will be mapped to concepts in the UMR graph.
Multiword expressions (MWEs) pose a particular challenge to UMR annotation because they deviate from the default one-to-one mapping between words and concepts. There are different types of MWEs which require different kinds of annotation that must be specified in guidelines.
This paper discusses the specific treatment for each type of MWE and its mapping to a UMR concept.