People are related with a type of cousin relationship if they share a common ancestor, neither is an ancestors of the other, they are not siblings, and neither is a sibling of a common ancestor (aunts and uncles).
People are related with a type of cousin relationship if they share a common ancestor and the most recent common ancestor is more than two generations apart for both parties. This means neither is an ancestors of the other, they are not siblings, and neither is a sibling of a common ancestor (aunts and uncles).