Relationships with this module can either be one-way, or two-way where the relationship is reciprocal. Most social networking sites make use of friendship relationships, and this is usually a two-way relationship. Obviously, some users may wish to connect with other users who don't want to classify them as "friends". Here, we have another alternative, say "followers" to show that a user is following the contributions of another user with interest. This can be a one-way relationship. A co-workers relationship may be useful, although it would be better suited in a business-centric social network, where other relationships are set up to help define job titles and roles (for example, User A manages User B).

So, we will set up the following relationships:

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