Sure, here is an example of a relationship with a common ground or focus, without descriptions, using single words and the parallel construction format with colons, and separating each half of the relationship and the common ground or focus with commas on a single line:
A coach:team:sport, an employee:supervisor:workplace
In this example, the single words are used to represent the people or entities in the relationship, and the parallel construction with colons is used to separate each half of the relationship (coach and team, employee and supervisor) and the common ground or focus (sport and workplace) on a single line. The commas are used to further separate the elements of the relationship on a single line. This format provides a concise and clear way to express the interdependence and interconnectedness of the relationship, and the common ground or focus of the relationship, without using descriptions.