output

{
    "interaction": {
        "content": "I might buy one, but they look quite expensive"
    },
    "tag_tree": {
        "sales": {
            "lead_score": 15
        }
    }
}

{
    "interaction": {
        "content": "It looks brilliant, but I've heard it's unreliable",
        "tag_tree": {
            "sales": {
                "lead_score": -5
            }
        }
    }