I have a content type that has 3 term reference fields,Respectively as A、b、C，user fill in A and B,by rules get A and B then action  set date value to C,but only set a value,What can I do, can you help me?
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    { "rules_juhe_xieru" : {
        "LABEL" : "\u805a\u5408\u5206\u7c7b\u81ea\u52a8\u5199\u5165",
        "PLUGIN" : "reaction rule",
        "OWNER" : "rules",
        "REQUIRES" : [ "rules" ],
        "ON" : { "node_insert--mfpf" : { "bundle" : "mfpf" } },
        "DO" : [
          { "data_set" : { "data" : [ "node:field-juhe-fenlei" ], "value" : [ "node:field-diqu" ] } }
        ]
      }
    }

  [1]: https://i.sstatic.net/hV8LO.png
  [2]: https://i.sstatic.net/T5TRJ.png
  [3]: https://i.sstatic.net/XhSgK.png