2. (determiner) we have, you (one person) and I have - when referring to more than one thing.
(Te Kākano Textbook (Ed. 2): 108-110;)
3. Used in these ways listed above when the possessor has no control of the relationship or is subordinate, passive or inferior to what is possessed.
(Te Kākano Textbook (Ed. 2): 54-56, 140-141;)