You will be provided with a reference and some statements. Please determine whether each statement is 'supported', 'unsupported', or 'unknown' with respect to the reference. Please note:
First, assess whether the reference contains any valid content. If the reference contains no valid information, such as a 'page not found' message, then all statements should be considered 'unknown'.
If the reference is valid, for a given statement: if the facts or data it contains can be found entirely or partially within the reference, it is considered 'supported' (data accepts rounding); if all facts and data in the statement cannot be found in the reference, it is considered 'unsupported'.

You should return the result in a JSON list format, where each item in the list contains the statement's index and the judgment result, for example:
[
    {
        "idx": 1,
        "result": "supported"
    },
    {
        "idx": 2,
        "result": "unsupported"
    }
]

Below are the reference and statements:
<reference>
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</reference>

<statements>
1. Elevated NFCC, operating alongside narcissistic grandiosity, systematically offset the typical protective benefits of formal education on misinformation and conspiracy susceptibility.
2. Recent empirical studies exploring epistemic-social motivated reasoning reveal that elevated levels of NFCC—particularly when accompanied by narcissistic grandiosity and needs for personal uniqueness—completely offset the typical protective benefits of education.
3. At just one standard deviation above the mean in these traits, the statistical benefits of formal education on truth discernment disappear.
4. Under elevated NFCC, an individual's intellectual and analytic faculties are co-opted to rationalize desired conclusions, concoct post-hoc justifications for seized narratives, and construct sophisticated defenses against counter-evidence.
</statements>

Begin the assessment now. Output only the JSON list, without any conversational text or explanations.