relation instance meaning in English

关系值

How to express the relation in the natural text and how to compute the similarity between relation instances
将自然文本中的关系实例表达成学习算法能够使用的方式并确定实例间的相似度计算公式。
If we had other relations , in particular binary ones of the form person - relation - person , then the relation instance would be the cart , the subject and object of the relation would be the items in the cart , and the transaction identifier would be the identifier of the relation instance
如果还有其他关系，尤其是采用“人-关系-人”形式的二元关系，那么关系实例相当于购物车，关系中的主体和对象是购物车中的商品，事务标识符是关系实例的标识符。