|Joan is the sister/wife of John. 003||Joan is John's sister/wife. 004|
|Joan is a student of Miss Zarves. 005||Joan is Miss Zarves's student. 006|
|the rivalry of the teams 014||the teams' rivalry 015|
It is up to annotators to decide from context which interpretation better fits the context.
Party (individual, group of persons, or institution) with which another party has a stable affiliation.