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     * Start the exercise.

     */

    start() {

        // Bind the execute function to the ExerciseExecutionContext.

        // This means that the `this` keyword, when used in the function, will

        // point to this ExerciseExecutionContext object.

        // The newly bound function is then called.

        // Bind the execute function (that the teacher writes to create an exercise,

        // see exercises.mjs) to the ExerciseExecutionContext.

        // This means that in the execute function, the `this` keyword will point to

        // said context.

        this.#execute.bind(this.#context)()

    }