gistfile1.py

  data = {
    "pair_1":
      [
        { # Sentence 1
          ("the","cat","sat") : set([]),
          ("cat","sat","on") : set([])
        },
        { # Sentence 2
          ("the","cat","sat") : set([]),
          ("cat","sat","on") : set([])
        }
      ],
    "pair_2":
      [
        { # Sentence 1
          ("the","quick","brown") : set([]),
          ("quick","brown","fox") : set([])
        },
        { # Sentence 2
          ("the","quick","brown") : set([]),
          ("quick","brown","fox") : set([])
        }
      ]
  }