OptionalargumentOptionalderivedthe called name; an Identifier, so a namespaced call like maps::map keeps its package
Optionalimplicitthe output is not written by a call asking for it: R echoes the top-level statement on its own
OptionallexemeOptionallinkedOptionalnamespaceOptionalpackagethe package the dependency provides, when the value names it only implicitly (a user/repo slug, a clone url)
OptionalpartsThe other statements that build this output: for a plot, the addons drawn onto it and, when it lands in a file, the device opener and closer around it. Answers which statements produce this output without rebuilding it from linkedIds.
Optionalrevisionthe revision such a reference pins, the v1.2 of user/repo@v1.2
OptionalvalueThe library name, file, source, destination etc. being sourced, read from, or written to.
Optionalversion
the argument the value was read from, under the id the InputSourcesQuery reports it with: ask that query about nodeId and this entry of its answer says whether the value is a glob, a prompt, ...