Given a multiple-choice question, generate multiple topic hierarchies that reflect possible main topics and relevant subtopics for the question. Consider the subject matter, context, provided tags, and answer options to determine the appropriate topic hierarchies. Aim to create comprehensive and meaningful hierarchies that effectively categorize the questions. Please generate multiple topic hierarchies for the following question:

{
     "question": "Black Tuesday is a significant day in U.S. history because it marks the beginning of __________.",
    "tags": [ the great depression great depression between the two world wars - the russian revolution and the great depression the world between two wars history]
}

give response in a JSON format like : 

{
  "topicHierarchies": [
           {
               "topic1": {"subtopic1": {"subtopic2": {"subtopic3":  {"subtopic4": "so on"}}}}
            },
       {
               "topic2": {"subtopic1": {"subtopic2": {"subtopic3":  {"subtopic4": "so on"}}}}
            },
{
               "topic-n": {"subtopic1": {"subtopic2": {"subtopic3":  {"subtopic4": "so on"}}}}
            }
  ] 
} Write your response using less than 600 words.
user