Conceptual canonicalization involves more radical changes: We replace the surface predicates (and perhaps other elements of the representational vocabulary) with canonical terms from a smaller repertoire, and/or decompose them using thematic roles or frame slots. For example, in a geographic domain, we might replace the relations (between countries) is next to, is adjacent to, borders on, is a neighbor of, shares a border with, etc., with a single canonical relation, say borders-on. In the domain of physical, communicative, and mental events, we might go further and decompose predicates into configurations of primitive predicates. For example, we might express “x walks” in the manner of Schank as