{
  "id": "path_001",
  "title": "German Basics - Family & Relationships",
  "description": "Learn essential German vocabulary and grammar related to family members, relationships, and basic social interactions. Perfect for beginners who want to talk about their personal life in German.",
  "metadata": [
    {
      "path_id": "path_001",
      "version": "1.2.0",
      "created_at": "2024-01-15T10:30:00Z",
      "updated_at": "2024-03-10T14:22:33Z"
    }
  ],
  "nodes": [
    {
      "id": 1,
      "title": "Family Members - Die Familie",
      "description": "Learn the basic vocabulary for family members and how to introduce your family in German.",
      "path_id": "path_001",
      "exercises": [
        {
          "id": 101,
          "ex_type": "vocabulary",
          "content": "{\"word\": \"der Vater\", \"translation\": \"father\", \"audio\": \"/audio/vater.mp3\", \"example\": \"Mein Vater ist Arzt.\"}",
          "node_id": 1
        },
        {
          "id": 102,
          "ex_type": "vocabulary",
          "content": "{\"word\": \"die Mutter\", \"translation\": \"mother\", \"audio\": \"/audio/mutter.mp3\", \"example\": \"Meine Mutter kocht gern.\"}",
          "node_id": 1
        },
        {
          "id": 103,
          "ex_type": "vocabulary",
          "content": "{\"word\": \"der Bruder\", \"translation\": \"brother\", \"audio\": \"/audio/bruder.mp3\", \"example\": \"Ich habe einen Bruder.\"}",
          "node_id": 1
        },
        {
          "id": 104,
          "ex_type": "multiple_choice",
          "content": "{\"question\": \"How do you say 'sister' in German?\", \"options\": [\"die Schwester\", \"der Schwester\", \"das Schwester\", \"die Schwestern\"], \"correct\": 0, \"explanation\": \"'Die Schwester' is feminine, so it uses the article 'die'.\"}",
          "node_id": 1
        },
        {
          "id": 105,
          "ex_type": "fill_blank",
          "content": "{\"sentence\": \"Meine ____ ist sehr nett.\", \"answer\": \"Schwester\", \"hint\": \"female sibling\", \"translation\": \"My sister is very nice.\"}",
          "node_id": 1
        }
      ]
    },
    {
      "id": 2,
      "title": "Possessive Pronouns - Possessivpronomen",
      "description": "Master the use of possessive pronouns (mein, dein, sein, ihr) when talking about family and relationships.",
      "path_id": "path_001",
      "exercises": [
        {
          "id": 201,
          "ex_type": "grammar_explanation",
          "content": "{\"topic\": \"Possessive Pronouns\", \"explanation\": \"German possessive pronouns change based on the gender and case of the noun they modify. 'Mein' (my), 'dein' (your), 'sein' (his), 'ihr' (her).\", \"examples\": [\"mein Vater\", \"meine Mutter\", \"dein Bruder\", \"ihre Schwester\"]}",
          "node_id": 2
        },
        {
          "id": 202,
          "ex_type": "drag_drop",
          "content": "{\"instruction\": \"Match the possessive pronoun with the correct family member\", \"pairs\": [{\"left\": \"mein\", \"right\": \"Vater\"}, {\"left\": \"meine\", \"right\": \"Mutter\"}, {\"left\": \"sein\", \"right\": \"Bruder\"}, {\"left\": \"ihre\", \"right\": \"Schwester\"}]}",
          "node_id": 2
        },
        {
          "id": 203,
          "ex_type": "translation",
          "content": "{\"english\": \"My father works in Berlin.\", \"german\": \"Mein Vater arbeitet in Berlin.\", \"hints\": [\"possessive pronoun\", \"verb conjugation\", \"preposition\"]}",
          "node_id": 2
        },
        {
          "id": 204,
          "ex_type": "multiple_choice",
          "content": "{\"question\": \"Complete: '_____ Tochter ist 5 Jahre alt.' (His daughter is 5 years old)\", \"options\": [\"Sein\", \"Seine\", \"Ihrer\", \"Ihre\"], \"correct\": 1, \"explanation\": \"'Tochter' is feminine, so 'sein' becomes 'seine'.\"}",
          "node_id": 2
        }
      ]
    },
    {
      "id": 3,
      "title": "Describing Relationships - Beziehungen beschreiben",
      "description": "Learn how to describe family relationships, marital status, and social connections in German.",
      "path_id": "path_001",
      "exercises": [
        {
          "id": 301,
          "ex_type": "vocabulary",
          "content": "{\"word\": \"verheiratet\", \"translation\": \"married\", \"audio\": \"/audio/verheiratet.mp3\", \"example\": \"Sie ist verheiratet.\"}",
          "node_id": 3
        },
        {
          "id": 302,
          "ex_type": "vocabulary",
          "content": "{\"word\": \"ledig\", \"translation\": \"single/unmarried\", \"audio\": \"/audio/ledig.mp3\", \"example\": \"Er ist noch ledig.\"}",
          "node_id": 3
        },
        {
          "id": 303,
          "ex_type": "conversation",
          "content": "{\"scenario\": \"Introducing your family at a party\", \"dialogue\": [{\"speaker\": \"A\", \"text\": \"Ist das deine Familie?\"}, {\"speaker\": \"B\", \"text\": \"Ja, das sind meine Eltern und mein Bruder.\"}, {\"speaker\": \"A\", \"text\": \"Wie alt ist dein Bruder?\"}, {\"speaker\": \"B\", \"text\": \"Er ist 25 Jahre alt und arbeitet als Lehrer.\"}], \"vocabulary_focus\": [\"Familie\", \"Eltern\", \"Alter\", \"Beruf\"]}",
          "node_id": 3
        },
        {
          "id": 304,
          "ex_type": "listening",
          "content": "{\"audio_file\": \"/audio/family_description.mp3\", \"transcript\": \"Hallo, ich heiße Anna. Ich bin verheiratet und habe zwei Kinder. Mein Mann arbeitet als Ingenieur und meine Tochter geht noch zur Schule.\", \"questions\": [{\"question\": \"Wie heißt die Frau?\", \"answer\": \"Anna\"}, {\"question\": \"Ist sie verheiratet?\", \"answer\": \"Ja\"}, {\"question\": \"Was ist ihr Mann von Beruf?\", \"answer\": \"Ingenieur\"}]}",
          "node_id": 3
        }
      ]
    },
    {
      "id": 4,
      "title": "Practice & Review - Übung und Wiederholung",
      "description": "Comprehensive review of all concepts learned in this path through mixed exercises and real-world scenarios.",
      "path_id": "path_001",
      "exercises": [
        {
          "id": 401,
          "ex_type": "story_completion",
          "content": "{\"story\": \"Maria stellt ihre Familie vor. Sie sagt: 'Das ist ___ Familie. ___ Vater ist Arzt und ___ Mutter ist Lehrerin. Ich habe auch einen ___ und eine ___. Wir sind eine große und glückliche Familie.'\", \"blanks\": [\"meine\", \"Mein\", \"meine\", \"Bruder\", \"Schwester\"], \"context\": \"Family introduction story\"}",
          "node_id": 4
        },
        {
          "id": 402,
          "ex_type": "speaking",
          "content": "{\"prompt\": \"Describe your family in German. Include at least 3 family members and use possessive pronouns.\", \"expected_elements\": [\"possessive pronouns\", \"family vocabulary\", \"complete sentences\"], \"time_limit\": 60}",
          "node_id": 4
        },
        {
          "id": 403,
          "ex_type": "comprehensive_quiz",
          "content": "{\"questions\": [{\"type\": \"multiple_choice\", \"question\": \"How do you say 'my parents' in German?\", \"options\": [\"meine Eltern\", \"mein Eltern\", \"meinen Eltern\", \"meiner Eltern\"], \"correct\": 0}, {\"type\": \"translation\", \"english\": \"Her husband is very kind.\", \"german\": \"Ihr Mann ist sehr nett.\"}, {\"type\": \"vocabulary\", \"definition\": \"A female parent\", \"answer\": \"die Mutter\"}]}",
          "node_id": 4
        },
        {
          "id": 404,
          "ex_type": "role_play",
          "content": "{\"scenario\": \"You're at a family gathering. Practice introducing different family members to a friend.\", \"roles\": [\"You\", \"Friend\"], \"objectives\": [\"Use correct possessive pronouns\", \"Introduce at least 4 family members\", \"Ask questions about the friend's family\"], \"vocabulary_bank\": [\"Großmutter\", \"Großvater\", \"Onkel\", \"Tante\", \"Cousin\", \"Cousine\"]}",
          "node_id": 4
        }
      ]
    }
  ]
}