{
    "father node": 9,
    "modification": "Modified the approach for retrieving valid fallback solutions to include a maximum validity check for fallback solutions. This aims to ensure that not only are unique solutions retrieved, but they also meet a certain quality standard. The condition for valid fallback solutions now checks if a solution passes an additional verification step before being returned.",
    "before": 0.7200000000000001,
    "after": 0.8,
    "succeed": true
}