Preguntas sobre ejemplos de oraciones con, y la definición y uso de "Relational"

A: This sentence would feel a bit unnatural in normal speech. But this pattern is sometimes used when talking about language/grammar/meaning.

I think the intended meaning is:

“‘Of’ denotes belonging to something, and having a relational quality with something.”

The writer wanted to emphasise the prepositions “to” and “with”. But they wanted to omit the word “something”, because they didn’t think it was important.

As a native speaker, it’s easy for me to understand that the writer chose to omit “something”. But for an English-learner, it’s confusing.