[
  {
    "input": ["camel case"],
    "output": "camelCase"
  },
  {
    "input": ["say hello "],
    "output": "sayHello"
  },
  {
    "input": [" camel case word "],
    "output": "camelCaseWord"
  },
  {
    "input": [""],
    "output": ""
  }
]