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>
Verification



appkey: "CF_APP_WAF", // 应用标识var AC_Opt = {userUserId: requestInfo.userUserId

var requestInfo = {"data":"","region":"sgp","sceneId":"19x5u7lo","token":"fde83c613573502d6e4df623ebf8c09e","traceid":"2f584a7217895480786066911e559e","type":"GET","userId":"HpadJlQnz2zSKcSmjXBaqQvjYUvP4jMJIk/ZwGNDNiM=","userUserId":"OcUdmycp9xvJ1PJnox4NQsI3IHBN/2z+g3ozdtJykq8="};
Access Verification
For better experience, please slide to complete the verification process before accessing the web page.

Please slide to verify

Time:
2026-09-16 03:41:18
</reference>

<statements>
1. Thin-film lithium niobate (TFLN) has emerged as a cornerstone platform for integrated nonlinear optics, high-speed electro-optics, and quantum photonics, owing to its broad optical transparency window (350 nm to 5 μm), large second-order susceptibility (χ^(2) ≈ 30 pm/V), and strong Pockels coefficient (r33 ≈ 32 pm/V)
</statements>

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