triple tag

Hi there! New to Drupal. I need help.

What module(s) or resources are best to help me enable triple tags, where:
1. Each tag is composed of a subject, predicate, and object.
2. The subject, predicate, and object can be chosen by users from specific nodes on my site. Each field can suggest nodes as you type.
3. Two nodes with the same name can be differentiated by an ID or something.

My goal is to link my nodes into a linked graph that can be queried by something like views. I want to display the relationships between nodes (the graph).