Wolak said somewhat emphatically that the nature of California 's market structure makes it impossible to single out a single participant as the culprit.

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    {
        "TypeName": "PER",
        "Text": "Wolak",
        "Start": 0,
        "End": 5
    },
    {
        "TypeName": "LOC",
        "Text": "California",
        "Start": 52,
        "End": 62
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]