This is how relationships work:
1 Element, No Relationships:
A2 Elements, One Relationship:
AB3 Elements, Three Relationships:
AB BC AC4 Elements, Six Relationships:
AB BC CD AC AD BD5 Elements, Ten Relationships:
AB BC CD DE AC AD AE BD BE CE6 Elements, Fifteen Relationships:
AB BC CD DE EF AC AD AE AF BD BE BF CE CF DF7 Elements, Twenty-One Relationships:
AB BC CD DE EF FG AC AD AE AF AG BD BE BF BG CE CF CG DF DG EG
