","comment":{"@type":"Comment","text":"Which is longest? "},"educationalAlignment":[{"@type":"AlignmentObject","alignmentType":"educationalSubject","targetName":"Mathematics"},{"@type":"AlignmentObject","alignmentType":"educationalSubject","targetName":"Length (imperial)"}],"encodingFormat":"text/markdown","eduQuestionType":"Multiple choice","learningResourceType":"Practice problem","suggestedAnswer":[{"@type":"Answer","position":0,"text":"Car","encodingFormat":"text/markdown","comment":{"@type":"Comment","text":"This is the wrong answer"}}],"acceptedAnswer":{"@type":"Answer","position":1,"text":"Plane","encodingFormat":"text/markdown","comment":{"@type":"Comment","text":"This is the correct answer"},"answerExplanation":{"@type":"Comment","text":"The correct answer is: Plane"}}}}