{
  "gameTitle": "Route 66 Word Cruiser",
  "version": "1.0.0",
  "totalMiles": 2448,
  "checkpoints": [
    { "mile": 0, "name": "Chicago, IL", "emoji": "🏙️" },
    { "mile": 306, "name": "St. Louis, MO", "emoji": "🌉" },
    { "mile": 612, "name": "Tulsa, OK", "emoji": "🛢️" },
    { "mile": 918, "name": "Amarillo, TX", "emoji": "🤠" },
    { "mile": 1224, "name": "Albuquerque, NM", "emoji": "🌵" },
    { "mile": 1530, "name": "Flagstaff, AZ", "emoji": "🏔️" },
    { "mile": 1836, "name": "Las Vegas, NV", "emoji": "🎰" },
    { "mile": 2142, "name": "Barstow, CA", "emoji": "🌴" },
    { "mile": 2448, "name": "Los Angeles, CA", "emoji": "🌊" }
  ],
  "wordSets": [
    {
      "id": "set_1",
      "difficulty": "easy",
      "words": [
        { "word": "adventure", "chinese": "冒險；奇遇", "pos": "n.", "example": "Life is an adventure." },
        { "word": "brilliant", "chinese": "傑出的；明亮的", "pos": "adj.", "example": "a brilliant idea" },
        { "word": "curious", "chinese": "好奇的", "pos": "adj.", "example": "curious about the world" },
        { "word": "discover", "chinese": "發現", "pos": "v.", "example": "discover new places" },
        { "word": "elegant", "chinese": "優雅的", "pos": "adj.", "example": "an elegant design" },
        { "word": "freedom", "chinese": "自由", "pos": "n.", "example": "the road to freedom" },
        { "word": "genuine", "chinese": "真誠的；真正的", "pos": "adj.", "example": "a genuine smile" },
        { "word": "horizon", "chinese": "地平線", "pos": "n.", "example": "beyond the horizon" },
        { "word": "journey", "chinese": "旅程", "pos": "n.", "example": "a long journey" },
        { "word": "kindle", "chinese": "點燃；激起", "pos": "v.", "example": "kindle enthusiasm" }
      ]
    },
    {
      "id": "set_2",
      "difficulty": "medium",
      "words": [
        { "word": "landscape", "chinese": "風景；景色", "pos": "n.", "example": "a beautiful landscape" },
        { "word": "mystery", "chinese": "神秘；謎", "pos": "n.", "example": "solve the mystery" },
        { "word": "nostalgia", "chinese": "懷舊；鄉愁", "pos": "n.", "example": "filled with nostalgia" },
        { "word": "obstacle", "chinese": "障礙", "pos": "n.", "example": "overcome every obstacle" },
        { "word": "pioneer", "chinese": "先驅；開拓者", "pos": "n.", "example": "a pioneer spirit" },
        { "word": "resilient", "chinese": "有韌性的", "pos": "adj.", "example": "resilient and strong" },
        { "word": "serendipity", "chinese": "意外發現的美好", "pos": "n.", "example": "pure serendipity" },
        { "word": "twilight", "chinese": "暮光；黃昏", "pos": "n.", "example": "in the twilight" },
        { "word": "vintage", "chinese": "復古的；經典的", "pos": "adj.", "example": "vintage charm" },
        { "word": "wanderlust", "chinese": "旅行慾望", "pos": "n.", "example": "full of wanderlust" }
      ]
    },
    {
      "id": "set_3",
      "difficulty": "hard",
      "words": [
        { "word": "ephemeral", "chinese": "短暫的；轉瞬即逝的", "pos": "adj.", "example": "ephemeral beauty" },
        { "word": "labyrinth", "chinese": "迷宮", "pos": "n.", "example": "a labyrinth of streets" },
        { "word": "quintessential", "chinese": "精髓的；典型的", "pos": "adj.", "example": "quintessential American" },
        { "word": "silhouette", "chinese": "剪影；輪廓", "pos": "n.", "example": "a silhouette against the sky" },
        { "word": "symphony", "chinese": "交響樂", "pos": "n.", "example": "a symphony of colors" },
        { "word": "whimsical", "chinese": "異想天開的", "pos": "adj.", "example": "whimsical ideas" },
        { "word": "kaleidoscope", "chinese": "萬花筒", "pos": "n.", "example": "a kaleidoscope of memories" },
        { "word": "melancholy", "chinese": "憂鬱；愁思", "pos": "n.", "example": "sweet melancholy" },
        { "word": "rendezvous", "chinese": "約會；會合點", "pos": "n.", "example": "a secret rendezvous" },
        { "word": "juxtapose", "chinese": "並置；對比", "pos": "v.", "example": "juxtapose old and new" }
      ]
    }
  ]
}