Prompt: Complete the following steps in a sequential order in a step-by-step way and use markdown formatting (start with **, don't use *): Step 1: Generate a list of the three most popular sub-topics related to {{Enter a topic}}. Step 2: For each sub-topic from Step 1, generate three of the most popular sub-topics related to it. Step 3: List the top three most popular keywords associated with each sub-topic from Step 2, without providing any descriptions. Step 4: For each keyword from Step 3, provide three long-tail keywords based on their popularity. Step 5: Provide a list, without descriptions, of three top semantically related keywords and entities for each long-tail keyword obtained in the response. Step 6: Create a table in markdown format with 5 columns and sort the suggestions from Step 1 to Step 5 into the table.