core/homeassistant/components/assist_pipeline/strings.json

{
  "entity": {
    "binary_sensor": {
      "assist_in_progress": {
        "name": "Assist in progress"
      }
    },
    "select": {
      "pipeline": {
        "name": "Assist pipeline",
        "state": {
          "preferred": "Preferred"
        }
      }
    }
  }
}