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>
Driver to stand trial in Tesla autopilot crash which killed two in Gardena - CBS Los Angeles

It is believed to be the first felony prosecution in the U.S. against a driver using a partially automated driving system.

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Driver to stand trial in Tesla autopilot crash which killed two in Gardena

May 20, 2022 / 10:35 AM PDT

/ AP

Add CBS News on Google

The driver of a Tesla which was operating on autopilot
must stand trial for a 2019 crash
that killed two people in Gardena, a judge ruled Thursday.
There is enough evidence to try Kevin George Aziz Riad, 27, on two counts of vehicular manslaughter, a Los Angeles County judge said in a Compton courtroom.
It is believed to be the first felony prosecution in the U.S. against a driver using a partially automated driving system.
The
crash occurred on Dec. 29, 2019
, at the intersection of Artesia Boulevard and Vermont Avenue. Gardena police said the Tesla Model S left a freeway and ran a red light when it smashed into a Honda Civic.
The crash killed Gilberto Alcazar Lopez, 40, of Rancho Dominguez and Maria Guadalupe Nieves-Lopez, 39, of Lynwood, who were in the Civic and were on their first date that night, relatives told the Orange County Register.
Riad and a woman in the Tesla were hospitalized with non-life-threatening injuries.
Los Angeles County prosecutors filed the charges last October.

Prosecutors said the Tesla's Autosteer and Traffic Aware Cruise Control were active. A Tesla engineer testified that sensors indicated Riad had a hand on the steering wheel but crash data showed no brakes were applied in the six minutes before the crash.
A police officer testified Thursday that several traffic signs warning motorists to slow down were posted near the end of the freeway.
Tesla has said that Autopilot and a more sophisticated "Full Self-Driving" system cannot drive themselves and that drivers must pay attention and be ready to react at any time.
The misuse of Autopilot, which can control steering, speed and braking,
has occurred on numerous occasions
and is the subject of investigations by two federal agencies. The filing of charges in the crash could serve notice to drivers who use systems like Autopilot that they cannot rely on them to control vehicles.

The criminal charges aren't the first involving an automated driving system, but they are the first to involve a widely used driver technology. Authorities in Arizona filed a charge of negligent homicide in 2020 against a driver Uber had hired to take part in the testing of a fully autonomous vehicle on public roads. The Uber vehicle, an SUV with the human backup driver on board, struck and killed a pedestrian.
Meanwhile, the National Highway Traffic Safety Administration on Wednesday
confirmed that it had sent a special crash investigation team
to determine whether a Tesla involved in a May 12 crash in Newport Beach that killed three people was operating on a partially automated driving system.

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In:

Tesla

Los Angeles

Gardena

© 2022 The Associated Press. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed.

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</reference>

<statements>
1. In December 2019, Riad was operating a Tesla Model S with Autopilot engaged on State Route 91
2. The vehicle exited the freeway onto Artesia Boulevard in Gardena, passed through a red traffic signal at 74 mph, and slammed into a Honda Civic, killing occupants Gilberto Alcazar Lopez and Maria Guadalupe Nieves-Lopez
3. Telemetric analysis revealed that Riad's hands were touching the steering wheel, satisfying the vehicle's passive torque sensor requirements, and that Autopilot issued no takeover warnings, yet crash logs recorded no manual braking during the six minutes preceding the collision
4. The driver remains the primary operator of the vehicle
</statements>

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