"Chechen-Russo Conflict", by Abdullah Khan, Feb 2000, footnotes removed,
http://www.amina.com/article/chechenrus_confl.html

 Rank  Occurances  Percentage    4-tuple
       (of 5032)
   1          4    0.0794913%    on december NUMBER NUMBER
   2          3    0.0596184%    the leader of the
   3          3    0.0596184%    the beginning of the
   4          3    0.0596184%    NUMBER barrels per day
   5          3    0.0596184%    NUMBER NUMBER barrels per
   6          2    0.0397456%    would be conquered by
   7          2    0.0397456%    with the exception of
   8          2    0.0397456%    with the death of
   9          2    0.0397456%    which all muslim lands
  10          2    0.0397456%    was led by an
  11          2    0.0397456%    was going to be
  12          2    0.0397456%    was able to defeat
  13          2    0.0397456%    under the leadership of
  14          2    0.0397456%    to the destruction of
  15          2    0.0397456%    to deliver crude oil
  16          2    0.0397456%    to defeat an entire
  17          2    0.0397456%    the severed heads of
  18          2    0.0397456%    the russians in the
  19          2    0.0397456%    the russian prime minister
  20          2    0.0397456%    the presidential elections of
  21          2    0.0397456%    the inhabitants of the
  22          2    0.0397456%    the failure of the
  23          2    0.0397456%    the exception of the
  24          2    0.0397456%    the end of this
  25          2    0.0397456%    the chief of the
  26          2    0.0397456%    the chechen president dzohar
  27          2    0.0397456%    the NUMBER NUMBER russian
  28          2    0.0397456%    severe economic crisis and
  29          2    0.0397456%    russians in the caucasus
  30          2    0.0397456%    resistance was led by
  31          2    0.0397456%    resistance to the russian
  32          2    0.0397456%    resistance campaign against the
  33          2    0.0397456%    resistance against the russians
  34          2    0.0397456%    reached NUMBER NUMBER barrels
  35          2    0.0397456%    per day in NUMBER
  36          2    0.0397456%    pan-orthodox dream by which
  37          2    0.0397456%    on october NUMBER NUMBER
  38          2    0.0397456%    on june NUMBER NUMBER
  39          2    0.0397456%    on january NUMBER NUMBER
  40          2    0.0397456%    on april NUMBER NUMBER
  41          2    0.0397456%    of violating human rights
  42          2    0.0397456%    of the security council
  43          2    0.0397456%    of the same year
  44          2    0.0397456%    of the former soviet
  45          2    0.0397456%    muslim lands would be
  46          2    0.0397456%    moscows red square to
  47          2    0.0397456%    led by an italian
  48          2    0.0397456%    lands would be conquered
  49          2    0.0397456%    inhabitants of the two
  50          2    0.0397456%    in the battle of
  51          2    0.0397456%    in northern caucasus whose
  52          2    0.0397456%    in NUMBER it was
  53          2    0.0397456%    in NUMBER and in
  54          2    0.0397456%    in NUMBER and NUMBER
  55          2    0.0397456%    however this did not
  56          2    0.0397456%    had to retreat to
  57          2    0.0397456%    from NUMBER to NUMBER
  58          2    0.0397456%    failure of the moscow-backed
  59          2    0.0397456%    emir abd al qader
  60          2    0.0397456%    dream by which all
  61          2    0.0397456%    chechen president dzohar dudayev
  62          2    0.0397456%    campaign against the russians
  63          2    0.0397456%    by which all muslim
  64          2    0.0397456%    by the name of
  65          2    0.0397456%    be conquered by orthodoxy
  66          2    0.0397456%    barrels per day in
  67          2    0.0397456%    april NUMBER NUMBER the
  68          2    0.0397456%    and with the exception
  69          2    0.0397456%    all muslim lands would
  70          2    0.0397456%    able to defeat an
  71          2    0.0397456%    NUMBER and in NUMBER
  72          2    0.0397456%    NUMBER NUMBER the russian
  73          2    0.0397456%    NUMBER NUMBER russian soldiers