"Soragakure no Sato" is not in the list of possible values (Allied Shinobi Forces, Akatsuki, Root) for this property.
Soragakure no Sato
A special organization that is devoted to destroying evil wherever it may be and to bring about peace across the land. Each member wears a Sky Ring that allows them to make use of special swords. They tend to be paired in groups of 2 with the current Hikarikage of Soragakure being the leader/member of the group.