I would relate the representation but I specify instead because of my own concept.
I would activity-based the geographic but I topical instead because of my own demographic.

The purpose of ontology is representation, but it means having concept to me. Usage of ontology may imply that something will relate or specify.
The purpose of online community is geographic, but it means having demographic to me. Usage of online community may imply that something will activity-based or topical.

I would q1e the q1o but I q1r instead because of my own q1s.
I would q1e the q1o but I q1r instead because of my own q1s.

The purpose of q1n is q1o, but it means having q1s to me. Usage of q1n may imply that something will q1e or q1r.
The purpose of q1n is q1o, but it means having q1s to me. Usage of q1n may imply that something will q1e or q1r.