You are a highly experienced educational content creator  for Indian competitive exams such as Railway (Typist - Non_Technical_Posts) under the subject of General English or Hindi (as opted). The topic is **Antonyms**.. Your task is to generate a detailed **bilingual explanation (English + Hindi)** for a **mnemonic anagram letter** for topic Antonyms, using the following inputs.

    Generate a Markdown output using this structure:

    ---

    🧠 **Anagram (Short)**: OPPOSITE  
    📖 **Expanded (English)**: OPPOSITE  
    📖 **Expanded (Hindi)**: विपरीत

    ---

    ### 🔠 Letter: I / अ — *Idiomatic Antonyms / मुहावरों के विपरीत शब्द*

    #### 📚 Concept:
    - EN: Idiomatic Antonyms  
    - HI: मुहावरे के विपरीत

    #### 🧠 Type:
    - EN: Idiomatic Antonyms  
    - HI: मुहावरों के विपरीत शब्द

    #### 📖 Description:
    - EN: Opposites based on common idioms or sayings used in daily language.  
    - HI: मुहावरों और कहावतों के विपरीत।

    #### 📌 Explanation:
    - EN: Opposites formed by idioms or set phrases commonly understood in daily language.  
    - HI: दिनचर्या के भाषा में प्रयुक्त मुहावरों के विशिष्ट विपरीत।

    #### ➗ Formula or Relation:
    - EN: **Idiom_A opposite → Idiom_B, both have contrasting meanings.**  
    - HI: **मुहावरा_A का विपरीत → मुहावरा_B, जिनका अर्थ अलग-अलग हो।**

    #### 💡 Example Questions:
    **ENGLISH:**
    ["Select the idiomatic antonym of 'Under the weather' used to describe health. Explain how it fits in a medical report format.", "Identify the idiomatic opposite of 'Piece of cake' used in job interviews assessing problem difficulty.", "Find the idiom antonym of 'Break a leg' and its usage in cultural communication in bank recruitment exams."]

    **HINDI:**
    ['स्वास्थ्य दर्शाने वाले मुहावरे ‘Under the weather’ का विपरीत चयन करें और चिकित्सकीय रिपोर्ट फॉर्मेट में उपयोग समझाइए।', '‘Piece of cake’ के विपरीत मुहावरा चुनिए जो नौकरी के इंटरव्यू में समस्या की कठिनाई बताता है।', '‘Break a leg’ के विपरीत मुहावरा खोजिए और बैंक भर्ती परीक्षा के सांस्कृतिक संदर्भ में इसका उपयोग समझाइए।']

    ---
    object should have:
        - "mnemonic_letter_english", "mnemonic_letter_hindi"
        - "type_english", "type_hindi"
        - "description_english", "description_hindi"
        - "difficulty_level_english", "difficulty_level_hindi"
        - "exam_frequency_english", "exam_frequency_hindi"
        - "time_to_solve_english", "time_to_solve_hindi"
        - "clue_words_english": list of 4-5 identifying keywords/phrases
        - "clue_words_hindi": same in Hindi
        - "what_to_use_english", "what_to_use_hindi"
        - "formula_english", "formula_hindi"
        - "alternative_formulas_english", "alternative_formulas_hindi": list of 2-3 alternative formulas
        - "algorithm_english", "algorithm_hindi": step-by-step string list
        - "quick_method_english", "quick_method_hindi"

        - "example": answer all  the question give as Example Questions.
 
          - Require multi-step calculation or reasoning.
          - NOT be short phrases, fragments, or simplified school-level word problems.each Example Questions should be including:
            - "example_no"
            - "question_english", "question_hindi"
            - "solution_steps_english": step list
            - "solution_steps_hindi": step list
            - "answer_english", "answer_hindi"
            - "verification_english", "verification_hindi"

        - "variations_english", "variations_hindi": list of variation types
        - "related_concepts_english", "related_concepts_hindi": related subtopics or concepts
        - "common_mistakes_english", "common_mistakes_hindi": list of 10 traps or errors
        - "tip_english", "tip_hindi": short-cut or important tip
        - "prerequisite_knowledge_english", "prerequisite_knowledge_hindi": list of 3 concepts
        - "practice_problems_english", "practice_problems_hindi": list of 3  full-length and detailed practical, compact competitive-level example questions** per type.  
      ⚠️ NOTE : Ensure answer all the question of Example Questions in the example key

        Use simple, learner-friendly language and return only the JSON object in your response, formatted with proper indentation and structure.
        Use clear language suitable for aptitude learners and format the JSON cleanly

### 🔁 output JSon should be

```json
            { 
              "mnemonic_letter_english": "",
              "mnemonic_letter_hindi": "",
              "type_english": "",
              "type_hindi": "",
              "description_english": "",
              "description_hindi": "",
              "difficulty_level_english": "",
              "difficulty_level_hindi": "",
              "exam_frequency_english": "",
              "exam_frequency_hindi": "",
              "time_to_solve_english": "",
              "time_to_solve_hindi": "",
              "clue_words_english": [
                  "",
                  "",
                  "",
                  "",
                  ""
              ],
              "clue_words_hindi": [
                  "",
                  "",
                  "",
                  "",
                  ""
              ],
              "what_to_use_english": "",
              "what_to_use_hindi": "",
              "formula_english": "",
              "formula_hindi": "",
              "alternative_formulas_english": [
                  "",
                  ""
              ],
              "alternative_formulas_hindi": [
                  "",
                  ""
              ],
              "algorithm_english": [
                  "",
                  "",
                  "",
                  ""
              ],
              "algorithm_hindi": [
                  "",
                  "",
                  "",
                  ""
              ],
              "quick_method_english": "",
              "quick_method_hindi": "",
              "example": [
                  {
                  "example_no":"",
                  "question_english": "",
                  "question_hindi": "",
                  "solution_steps_english": [
                      "",
                      "",
                      "",
                      "",
                      ""
                  ],
                  "solution_steps_hindi": [
                      "",
                      "",
                      "",
                      "",
                      ""
                  ],
                  "answer_english": "",
                  "answer_hindi": "",
                  "verification_english": "",
                  "verification_hindi": ""
              }..,],
              "variations_english": [
                  "",
                  "",
                  ""
              ],
              "variations_hindi": [
                  "",
                  "",
                  ""
              ],
              "related_concepts_english": [
                  "",
                  "",
                  ""
              ],
              "related_concepts_hindi": [
                  "",
                  "",
                  ""
              ],
              "common_mistakes_english": [
                  "",
                  ""
              ],
              "common_mistakes_hindi": [
                  "",
                  ""
              ],
              "tip_english": "",
              "tip_hindi": "",
              "prerequisite_knowledge_english": [
                  "",
                  "",
                  ""
              ],
              "prerequisite_knowledge_hindi": [
                  "",
                  "",
                  ""
              ],
              "practice_problems_english": [
                  "",
                  ""
              ],
              "practice_problems_hindi": [
                  "",
                  ""
              ]
          }