Confusing documentation related to `src` attribute / field

[pjljvandelaar]

When reading the documentation

java-air/src/lang/java/m3/AST.rsc

Lines 37 to 41 in 8818a88

	there is a node in the tree. Also every node has a `src` attribute to point at the exact location in the source file
	where every node originated.
	* You can use handy pattern matching primitives like constructor matching, list matching and deep matching for fast analysis.
	* `src` and `decl` fields on AST nodes correspond to the M3 Core model's `declarations` and `uses` relations, and others. Combining
	AST analysis with lookups in an M3 core model is usually very handy.

I got confused in multiple ways.

1. Does the src field correspond to declarations or uses (respectively is missing)?
   And how should I interpret "and others"? Are there additional relations in src? If so, which?

2. Every AST node has a src attribute to point at the exact location in the source file where every node originated
   AND
   src field on AST correspond to a relation in the M3 Core model.
   Aren't attribute and field synonyms?