  
  "aren't": [{"F": "are", "L": "be", "pos": "VBP", "number": 2},
             {"F": "n't", "L": "not"}],
  "arent": [{"F": "are", "L": "be", "pos": "VBP", "number": 2},
             {"F": "n't", "L": "not"}],
  "Aren't": [{"F": "Are", "L": "be", "pos": "VBP", "number": 2},
             {"F": "n't", "L": "not"}],
  
  "can't": [{"F": "ca", "L": "can", "pos": "MD"},
            {"F": "n't", "L": "not", "pos": "RB"}],
 
</s> remove           {"F": "n't", "L": "not", "pos": "RB"}],
 </s> add           {"F": "nt", "L": "not", "pos": "RB"}], </s> remove         {"F": "'m", "L": "be", "pos": "VBP", "number": 1, "tenspect": 1}],
"im": [{"F": "m", "L": "-PRON-"},
        {"F": "'m", "L": "be", "pos": "VBP", "number": 1, "tenspect": 1}],
 </s> add         {"F": "m", "L": "be", "pos": "VBP", "number": 1, "tenspect": 1}],
"im": [{"F": "i", "L": "-PRON-"},
        {"F": "m", "L": "be", "pos": "VBP", "number": 1, "tenspect": 1}], </s> remove           {"F": "n't", "L": "not", "pos": "RB"}],
 </s> add           {"F": "nt", "L": "not", "pos": "RB"}], </s> remove             {"F": "n't", "L": "not", "pos": "RB"}],
 </s> add             {"F": "nt", "L": "not", "pos": "RB"}], </s> remove                 {"F": "n't", "L": "not", "pos": "RB"}],
 </s> add                 {"F": "nt", "L": "not", "pos": "RB"}],
           {"F": "nt", "L": "not"}],
  
  "aren't": [{"F": "are", "L": "be", "pos": "VBP", "number": 2},
             {"F": "n't", "L": "not"}],
  "arent": [{"F": "are", "L": "be", "pos": "VBP", "number": 2},
           {"F": "nt", "L": "not"}],
  "Aren't": [{"F": "Are", "L": "be", "pos": "VBP", "number": 2},
             {"F": "n't", "L": "not"}],
  
  "can't": [{"F": "ca", "L": "can", "pos": "MD"},
            {"F": "n't", "L": "not", "pos": "RB"}],
keep keep keep keep replace keep keep keep keep keep
 * Fix ... tokenization, and correct orth inconsistencies in specials.json 
lang_data/en/specials.json