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The documentation is very unclear as to how QuestionObject should be combined with AssessmentResultObject to generate a result for further processing.

For example, we have (from the documentation):

QuestionObject["How many career home runs did Hank Aaron hit?", 
x = AssessmentFunction[{714 -> False, 755 -> True, 868 -> False}]]

which produces a nice graphic, but no output one can capture for further processing:

So how do we get the result (True or False in this case)?

x is the AssessmentFunction:

AssessmentFunction[{714 -> False, 755 -> True, 868 -> False}]

The documentation appears to imply that an AssessmentResultObject is automatically created and should be accessible using:

x["property"], where "property is, for instance, "AnswerCorrect".

But this doesn't work, nor do any of the other possibilities, giving an error:

AssessmentFunction::invans: The provided answer is not supported by the comparison method of the assessment function.

The documentation is very unclear as to how these should be combined to generate a result for further processing.

For example, we have:

QuestionObject["How many career home runs did Hank Aaron hit?", 
x = AssessmentFunction[{714 -> False, 755 -> True, 868 -> False}]]

which produces the following:

enter image description here

But how to get the result (True or False in this case)?

x is the AssessmentFunction:

AssessmentFunction[{714 -> False, 755 -> True, 868 -> False}]

The documentation appears to imply that an AssessmentResultObject is automatically created and should be accessible using:

x["property"], where "property is, for instance, "AnswerCorrect".

But this doesn't work, nor do any of the other possibilities, giving an error:

AssessmentFunction::invans: The provided answer is not supported by the comparison method of the assessment function.

So how should QuestionObject be used to generate a result for further processing?