anchor.diff:  {
       "query": {
           "bool" : {
  -            "query" : {
  +            "must" : {
                   "match_all" : {}
               },
               "filter" : {
  
positive.code: {
      "query": {
          "bool" : {
              "query" : {
                  "match_all" : {}
              },
              "filter" : {
  
negative.code: {
      "query": {
          "bool" : {
              "must" : {
                  "match_all" : {}
              },
              "filter" : {
  