{ "question" : {
    "id": "",
    "category": "regex",
    "nerd_level": 2,
    "text": "Which regex will match 'blaaa' with the number of 'a' ' s at the end ranging from 2 to 5",
    "a1": "bla{2..5}",
    "a2": "bla{2-5}",
    "a3": "bla{2,5}",
    "a4": "bla[2-5]",
    "right_answer": "a3",
    "created_at": "2011-06-07",
    "created_by": "mkorfmann"
  }
}