Run the following Python JSON parsing script on valid JSON:

import json
json.loads( '["[\"Residential | Furniture | Cabinets\",\"119.99\"]"]' )

Result:

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "C:\Python33\lib\json\__init__.py", line 319, in loads
    return _default_decoder.decode(s)
  File "C:\Python33\lib\json\decoder.py", line 352, in decode
    obj, end = self.raw_decode(s, idx=_w(s, 0).end())
  File "C:\Python33\lib\json\decoder.py", line 368, in raw_decode
    obj, end = self.scan_once(s, idx)
ValueError: Expecting ',' delimiter: line 1 column 5 (char 4)