The system, variously called "legal guardianship" or "guardianship agreement" (, pinyin: , ), permits same-sex partners to make important decisions about medical and personal care, death and funeral, property management, and maintenance of rights and interests. In case one partner loses the ability to make crucial decisions (i.e. mental or physical illness or accident), his or her guardian may decide for them in their best interest. Their legal relationship can also include wealth and inheritance, or pension, depending on which additional legal documents the couple decides to sign, such as a will.