Another model, sometimes referred to as "intimate network", may include relationships of varying significance to the people involved, but people who practice it do not explicitly label relationships primary or secondary, and hierarchies may be fluid and vague or nonexistent.
Another model may include relationships of varying significance to the people. These people are involved. Another model is sometimes referred to as "intimate network". People may be fluid and vague or nonexistent. These People practice it do not explicitly label relationships primary or secondary. These People practice it hierarchies.