(...) Hmm. Interesting idea. So part 3937 (URL) might have an entry like: 0 ASSOCIATE 3938 6134 and part 3938 (URL) might have: 0 ASSOCIATE 3937 2440 (of course, these examples capture information that otherwise might be captured by a connectivity (...) (22 years ago, 24-Jul-02, to lugnet.cad.dev.org.ldraw)
(...) WAY better than using naming to overload. 2916 and 2917 get at best a very weak association if they have train in their name. With the ASSOCIATE keyword extension it becomes quite explicit what their connection is. (and parts can also have (...) (22 years ago, 24-Jul-02, to lugnet.cad.dev.org.ldraw)