Can't deserialize YAML string array with Jackson

Question

I am trying to map a yaml file into my java object. To achieve this I'm using the jackson ObjectMapper with the YamlFactory.

   private JsonNode extractContent(final String url) throws Exception {
        ObjectMapper yamlMapper = new ObjectMapper(new YAMLFactory());  
        // gitlabHttpService.getAndDecodeFileData(url); -> gets decoded yaml file from gitlab repo as string
        String yamlString = gitlabHttpService.getAndDecodeFileData(url);
        JsonNode jsonNode = yamlMapper.readTree(yamlString);
        return jsonNode;
    }

The following code shows the input Yaml String which needs to be converted into a JsonNode or similar.

version: '2.0'

nlu:
- intent: Generell, wie melde ich mich an?
  examples: |-
    - [mycompany]{"entity":"category","value":"mycompany"} [hr]{"entity":"subcategory1","value":"hr"} [covid]{"entity":"subcategory2","value":"covid"} Wie kann ich mich anmelden?
    - [mycompany]{"entity":"category","value":"mycompany"} [hr]{"entity":"subcategory1","value":"hr"} [covid]{"entity":"subcategory2","value":"covid"} Wo melde ich mich an?
    - [mycompany]{"entity":"category","value":"mycompany"} [hr]{"entity":"subcategory1","value":"hr"} [covid]{"entity":"subcategory2","value":"covid"} Ich will mich anmelden
    - [mycompany]{"entity":"category","value":"mycompany"} [hr]{"entity":"subcategory1","value":"hr"} [covid]{"entity":"subcategory2","value":"covid"} wie anmelden?

But unfortunatly the result looks like the following code snippet and it seems like the ObjectMapper can't identify the YamlArray correctly. It returns just a simple string instead of a list as the examples attribute.

{
   "version":"2.0",
   "nlu":[
     {
         "intent":"Generell, wie melde ich mich an?",
         "examples":"- [mycompany]{\"entity\":\"category\",\"value\":\"postfinance\"} [hr]{\"entity\":\"subcategory1\",\"value\":\"hr\"} [covid]{\"entity\":\"subcategory2\",\"value\":\"covid\"} Wie kann ich mich anmelden?\n- [postfinance]{\"entity\":\"category\",\"value\":\"postfinance\"} [hr]{\"entity\":\"subcategory1\",\"value\":\"hr\"} [covid]{\"entity\":\"subcategory2\",\"value\":\"covid\"} Wo melde ich mich an?\n- [postfinance]{\"entity\":\"category\",\"value\":\"postfinance\"} [hr]{\"entity\":\"subcategory1\",\"value\":\"hr\"} [covid]{\"entity\":\"subcategory2\",\"value\":\"covid\"} Ich will mich anmelden\n- [postfinance]{\"entity\":\"category\",\"value\":\"postfinance\"} [hr]{\"entity\":\"subcategory1\",\"value\":\"hr\"} [covid]{\"entity\":\"subcategory2\",\"value\":\"covid\"} wie anmelden?"
      }
   ]
}

The expected outcome should look like this:

{
   "version":"2.0",
   "nlu":[
      {
         "intent":"Generell, wie melde ich mich an?",
         "examples":[
            "[mycompany]{\"entity\":\"category\",\"value\":\"mycompany\"} [hr]{\"entity\":\"subcategory1\",\"value\":\"hr\"} [covid]{\"entity\":\"subcategory2\",\"value\":\"covid\"} Wie kann ich mich anmelden?\n",
            "[mycompany]{\"entity\":\"category\",\"value\":\"mycompany\"} [hr]{\"entity\":\"subcategory1\",\"value\":\"hr\"} [covid]{\"entity\":\"subcategory2\",\"value\":\"covid\"} Wo melde ich mich an?\n",
            "[mycompany]{\"entity\":\"category\",\"value\":\"mycompany\"} [hr]{\"entity\":\"subcategory1\",\"value\":\"hr\"} [covid]{\"entity\":\"subcategory2\",\"value\":\"covid\"} Ich will mich anmelden\n",
            "[mycompany]{\"entity\":\"category\",\"value\":\"mycompany\"} [hr]{\"entity\":\"subcategory1\",\"value\":\"hr\"} [covid]{\"entity\":\"subcategory2\",\"value\":\"covid\"} wie anmelden?"
         ]
      }
   ]
}