ontology

Hello,

We are trying to build an InfoBase using Drupal. I am trying to use Taxonomy. Currently I am simply defining a set of terms. I would love to know how any of you use it. What I really need is an ontology of businesses (not only terms, but also relationship between terms). Here are some questions:

1. Can you construct relationship between terms
2. Can you constrain these relationships based on some rules (RDF schema comes to mind)
3. Is there any relationships between taxonomy module and the RDF in the core?

I am interested in building RDFa features into a number of real estate sites I have worked on. I have a pre-release module that will bridge drupal and MLSpin.com IDX data using property node type. I have been looking for existing namespaces or ontologies, alongs the lines of foaf and dc that would categories real estate or listings. If there is not an existing namespace, then I am interested getting it started. Has anyone found, built or published on?

Greetings,

Well, I don't know if you know about simpleontology module for Drupal 6.x, this module work with concepts, relations, tag and properties, this work with inferences.
The owner of this project is a chinesse student who published his document in chinesse language.
Well this project not is my owner.
This module is available at: http://code.google.com/p/simpleontology/
Pre requisites

• graphviz

There is an error in utils.php file under src directory at line 362, here there is a line with (%s) parameter, this should be ('%s').

This is a crude abstract, Basically I wish to know if someone can mentor this project and its feasability with taxanomy ..

                      ABSTRACT