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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Ray ID: a3beb5390bce0d7b
Client IP: 208.110.231.2
©
2008-2026
ResearchGate GmbH. All rights reserved.
</reference>

<statements>
1. Kinetic Ground Interaction Primary Hardware Transducers: Multi-axis piezoelectric/strain-gauge force plates, instrumented pressure insoles
2. Kinetic Ground Interaction Extracted Physical & Biomechanical Variables: Ground Reaction Forces (GRF), Center of Pressure (CoP), rate of force development, impulse
3. Kinetic chain analyses also evaluate the timing and sequencing of peak angular velocities across linked joints to identify breakdowns in force transmission.
4. The primary technical bottleneck involves managing computational complexity within strict real-time latency budgets [21].
5. To operate within these latency constraints, modern system architectures are transitioning from cloud-based servers to decentralized edge computing configurations running on hardware such as NVIDIA Jetson, Raspberry Pi 5, and specialized ARM Cortex processors [21].
6. Implementing model compression techniques—including structured pruning, 8-bit integer (INT8) quantization via TensorRT, and dynamic task offloading—has achieved 42% to 70% reductions in processing latency while maintaining overall analytical accuracy above 98% [21].
</statements>

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