what is .. (two dots) in jq filter

given my input file: kind.json

[  {"kind": "ConfigMap1"  },  {"kind": "ConfigMap1"  },  {"kind": "ConfigMap2"  },  {"kind": "ConfigMap'4"  },  {"kind": "ConfigMap\"6"  }]

and on using jq command jq .. kind.json, i am seeing unexpected output. You can see that here -> https://jqplay.org/s/pTe-CtdXV1.

[  {"kind": "ConfigMap1"  },  {"kind": "ConfigMap1"  },  {"kind": "ConfigMap2"  },  {"kind": "ConfigMap'4"  },  {"kind": "ConfigMap\"6"  }]{"kind": "ConfigMap1"}"ConfigMap1"{"kind": "ConfigMap1"}"ConfigMap1"{"kind": "ConfigMap2"}"ConfigMap2"{"kind": "ConfigMap'4"}"ConfigMap'4"{"kind": "ConfigMap\"6"}"ConfigMap\"6"

Just wondering what the two dots mean here and what jq is doing here. Any help and explanation will be greatly appriciated.