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 **English Grammar**.. Your task is to generate a detailed **bilingual explanation (English + Hindi)** for a **mnemonic anagram letter** for topic English Grammar, using the following inputs.

    Generate a Markdown output using this structure:

    ---

    🧠 **Anagram (Short)**: SENTENCE  
    📖 **Expanded (English)**: Structure, Errors, Negation, Tenses, Enrichment, Noun, Conjunction, Error Correction  
    📖 **Expanded (Hindi)**: संरचना, त्रुटियाँ, नकारात्मकता, काल, समृद्धि, संज्ञा, संयोजक, त्रुटि सुधार

    ---

    ### 🔠 Letter: N / स — *Noun Types / संज्ञा के प्रकार*

    #### 📚 Concept:
    - EN: Noun Types  
    - HI: संज्ञा के प्रकार

    #### 🧠 Type:
    - EN: Noun Types  
    - HI: संज्ञा के प्रकार

    #### 📖 Description:
    - EN: Differentiating and using types of nouns like common, proper, collective, and abstract accurately.  
    - HI: सामान्य, विशेष, समूह एवं भावात्मक संज्ञाओं के प्रकारों को पहचानना और उपयोग करना।

    #### 📌 Explanation:
    - EN: Recognizing common, proper, collective, and abstract nouns assists in using nouns accurately in context.  
    - HI: सामान्य, विशेष, समूह एवं भावात्मक संज्ञाओं को पहचानना सही प्रयोग में मदद करता है।

    #### ➗ Formula or Relation:
    - EN: **Nouns = Common + Proper + Collective + Abstract**  
    - HI: **संज्ञाएं = सामान्य + विशेष + समूह + भावात्मक**

    #### 💡 Example Questions:
    **ENGLISH:**
    ["Classify and use the correct noun types in the sentence: 'Teamwork and dedication are the keys to success in the office environment.' Identify abstract, collective, and common nouns.", 'Create sentences using proper, common, and collective nouns related to office and clerical work, demonstrating understanding of their grammatical use.', "Transform the sentence 'The list contains all documents.' by replacing common nouns with appropriate proper nouns and explaining the impact on meaning."]

    **HINDI:**
    ["संज्ञाओं के प्रकार पहचानें और वाक्य में उपयोग करें: 'टीमवर्क और समर्पण कार्यालय में सफलता की कुंजी हैं।' जिसमें भावार्थ, समूह, सामान्य संज्ञाएं हों।", 'कार्यालय कार्य संबंधी सही, सामान्य और समूह संज्ञाओं का प्रयोग करते हुए तीन वाक्य बनाएं।', "वाक्य 'सूची में सभी दस्तावेज़ शामिल हैं।' को उचित संज्ञाओं में बदलें और अर्थ पर प्रभाव समझाएं।"]

    ---
    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": [
                  "",
                  ""
              ]
          }