{
  "id": "sbs",
  "name": "Side by Side",
  "description": "Side by Side English Learning Series - Complete course for intermediate learners",
  "difficulty": "intermediate",
  "language": "en-US",
  "metadata": {
    "version": "1.0",
    "created": "2025-09-23",
    "updated": "2025-09-23",
    "source": "Side by Side English Learning Series",
    "target_level": "intermediate",
    "total_estimated_hours": 100,
    "prerequisites": ["basic-english"],
    "learning_objectives": [
      "Master intermediate vocabulary for daily situations",
      "Understand grammar structures in context",
      "Develop conversational skills",
      "Practice reading and listening comprehension"
    ],
    "content_tags": ["vocabulary", "grammar", "conversation", "practical-english"],
    "total_chapters": 12,
    "available_chapters": ["2", "3", "7-8"],
    "completion_criteria": {
      "overall_progress": 80,
      "chapters_completed": 8,
      "vocabulary_mastery": 85
    }
  },
  "chapters": [
    {
      "id": "sbs-2",
      "chapter_number": "2",
      "name": "Locations & Classrooms",
      "description": "Learn classroom objects, home locations, and practice Where questions with to be",
      "estimated_hours": 15,
      "difficulty": "beginner",
      "prerequisites": ["sbs-1"],
      "learning_objectives": [
        "Master classroom object vocabulary",
        "Learn home and location vocabulary",
        "Practice Where questions with to be",
        "Understand subject pronouns and contractions",
        "Learn greetings and basic conversations"
      ],
      "vocabulary_count": 49,
      "phrases_count": 14,
      "dialogs_count": 4,
      "exercises_count": 4
    },
    {
      "id": "sbs-3",
      "chapter_number": "3",
      "name": "Present Continuous Tense",
      "description": "Learn everyday activities and master present continuous tense",
      "estimated_hours": 18,
      "difficulty": "beginner",
      "prerequisites": ["sbs-2"],
      "learning_objectives": [
        "Master present continuous tense formation",
        "Learn everyday activity vocabulary",
        "Practice What are you doing questions",
        "Understand verb -ing forms",
        "Learn to describe ongoing actions"
      ],
      "vocabulary_count": 45,
      "phrases_count": 17,
      "dialogs_count": 4,
      "exercises_count": 3
    },
    {
      "id": "sbs-7-8",
      "chapter_number": "7-8",
      "name": "Daily Life & Vocabulary",
      "description": "Master intermediate vocabulary for daily situations including clothing, body parts, emotions and technology",
      "estimated_hours": 25,
      "difficulty": "intermediate",
      "prerequisites": ["sbs-5-6"],
      "learning_objectives": [
        "Master intermediate vocabulary for daily situations",
        "Understand clothing and body parts terminology",
        "Learn emotional expressions and feelings",
        "Practice technology and social media vocabulary"
      ],
      "vocabulary_count": 150,
      "phrases_count": 45,
      "dialogs_count": 8,
      "exercises_count": 25
    }
  ]
}