一个语言学的问题

请大家帮我看一下这句话哪里错了？
A  register is a language variety viewed with respect to its context of use. The notion of field is associat-ed with  the variation relating to what the user of trying to do with language.
下面这个空格里应该填什么？
All hyponymy is transitive in the sense that there is a _______relation between different terms.

All hyponymy is transitive in the sense that there is a ___class____relation between different terms.
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不好意思哦，帮不了你！